diff --git a/CHANGELOG.md b/CHANGELOG.md
index 25f285e9f..6799bff0a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,16 @@
 # Changelog Fab-manager
 
 - adds reservation context feature (for machine, training, space)
+- Fix a bug: event reserved places compute error
 - [TODO DEPLOY] `rails fablab:es:build_stats`
 - [TODO DEPLOY] `rails fablab:maintenance:regenerate_statistics[2014,1]`
+- [TODO DEPLOY] `rails fablab:setup:build_places_cache`
+
+## v6.0.11 2023 July 21
+
+- Fix a bug: incorrect date range in statistics
+- Fix a bug: hide project categories filter if there is no project categories
+- Improvement : dialog confirm to remove a project category
 
 ## v6.0.10 2023 July 13
 
diff --git a/app/frontend/src/javascript/components/user/gender-input.tsx b/app/frontend/src/javascript/components/user/gender-input.tsx
index 5958fe753..9395259de 100644
--- a/app/frontend/src/javascript/components/user/gender-input.tsx
+++ b/app/frontend/src/javascript/components/user/gender-input.tsx
@@ -7,13 +7,14 @@ import { useTranslation } from 'react-i18next';
 interface GenderInputProps<TFieldValues> {
   register: UseFormRegister<TFieldValues>,
   disabled?: boolean|((id: string) => boolean),
-  required?: boolean
+  required?: boolean,
+  tooltip?: string
 }
 
 /**
  * Input component to set the gender for the user
  */
-export const GenderInput = <TFieldValues extends FieldValues>({ register, disabled = false, required }: GenderInputProps<TFieldValues>) => {
+export const GenderInput = <TFieldValues extends FieldValues>({ register, disabled = false, required, tooltip }: GenderInputProps<TFieldValues>) => {
   const { t } = useTranslation('shared');
 
   const [isDisabled, setIsDisabled] = useState<boolean>(false);
@@ -46,6 +47,10 @@ export const GenderInput = <TFieldValues extends FieldValues>({ register, disabl
                disabled={isDisabled}
                {...register('statistic_profile_attributes.gender' as FieldPath<TFieldValues>)} />
       </label>
+      {tooltip && <div className="fab-tooltip">
+        <span className="trigger"><i className="fa fa-question-circle" /></span>
+        <div className="content">{tooltip}</div>
+      </div>}
     </fieldset>
   );
 };
diff --git a/app/frontend/src/javascript/components/user/user-profile-form.tsx b/app/frontend/src/javascript/components/user/user-profile-form.tsx
index 940315ed7..21ce943a5 100644
--- a/app/frontend/src/javascript/components/user/user-profile-form.tsx
+++ b/app/frontend/src/javascript/components/user/user-profile-form.tsx
@@ -184,7 +184,7 @@ export const UserProfileForm: React.FC<UserProfileFormProps> = ({ action, size,
       <div className="fields-group">
         <div className="personnal-data">
           <h4>{t('app.shared.user_profile_form.personal_data')}</h4>
-          <GenderInput register={register} disabled={isDisabled} required />
+          <GenderInput register={register} disabled={isDisabled} required tooltip={t('app.shared.user_profile_form.used_for_statistics')} />
           <div className="names">
             <FormInput id="profile_attributes.last_name"
                        register={register}
@@ -352,8 +352,7 @@ export const UserProfileForm: React.FC<UserProfileFormProps> = ({ action, size,
           <FormSwitch control={control}
                       id="is_allow_newsletter"
                       disabled={isDisabled}
-                      label={t('app.shared.user_profile_form.allow_newsletter')}
-                      tooltip={t('app.shared.user_profile_form.allow_newsletter_help')} />
+                      label={t('app.shared.user_profile_form.allow_newsletter')} />
         </div>
         {showGroupInput && <div className="group">
           <FormSelect options={groups}
diff --git a/app/frontend/src/javascript/controllers/admin/projects.js b/app/frontend/src/javascript/controllers/admin/projects.js
index 4f25dd2ae..710585d8d 100644
--- a/app/frontend/src/javascript/controllers/admin/projects.js
+++ b/app/frontend/src/javascript/controllers/admin/projects.js
@@ -12,8 +12,8 @@
  */
 'use strict';
 
-Application.Controllers.controller('AdminProjectsController', ['$scope', '$state', 'Component', 'Licence', 'Theme', 'ProjectCategory', 'componentsPromise', 'licencesPromise', 'themesPromise', 'projectCategoriesPromise', '_t', 'Member', 'uiTourService', 'settingsPromise', 'growl',
-  function ($scope, $state, Component, Licence, Theme, ProjectCategory, componentsPromise, licencesPromise, themesPromise, projectCategoriesPromise, _t, Member, uiTourService, settingsPromise, growl) {
+Application.Controllers.controller('AdminProjectsController', ['$scope', '$state', 'Component', 'Licence', 'Theme', 'ProjectCategory', 'componentsPromise', 'licencesPromise', 'themesPromise', 'projectCategoriesPromise', '_t', 'Member', 'uiTourService', 'settingsPromise', 'growl', 'dialogs',
+  function ($scope, $state, Component, Licence, Theme, ProjectCategory, componentsPromise, licencesPromise, themesPromise, projectCategoriesPromise, _t, Member, uiTourService, settingsPromise, growl, dialogs) {
     // Materials list (plastic, wood ...)
     $scope.components = componentsPromise;
 
@@ -136,8 +136,20 @@ Application.Controllers.controller('AdminProjectsController', ['$scope', '$state
      * @param index {number} project category index in the $scope.projectCategories array
      */
     $scope.removeProjectCategory = function (index) {
-      ProjectCategory.delete($scope.projectCategories[index]);
-      return $scope.projectCategories.splice(index, 1);
+      return dialogs.confirm({
+        resolve: {
+          object () {
+            return {
+              title: _t('app.admin.project_categories.delete_dialog_title'),
+              msg: _t('app.admin.project_categories.delete_dialog_info')
+            };
+          }
+        }
+      }
+      , function () { // cancel confirmed
+        ProjectCategory.delete($scope.projectCategories[index]);
+        $scope.projectCategories.splice(index, 1);
+      });
     };
 
     /**
diff --git a/app/frontend/src/javascript/controllers/admin/statistics.js b/app/frontend/src/javascript/controllers/admin/statistics.js
index e810ac837..fd4409010 100644
--- a/app/frontend/src/javascript/controllers/admin/statistics.js
+++ b/app/frontend/src/javascript/controllers/admin/statistics.js
@@ -506,8 +506,8 @@ Application.Controllers.controller('StatisticsController', ['$scope', '$state',
         scroll: ES_SCROLL_TIME + 'm',
         'stat-type': type,
         'custom-query': custom ? JSON.stringify(Object.assign({ exclude: custom.exclude }, buildElasticCustomCriterion(custom))) : '',
-        'start-date': moment($scope.datePickerStart.selected).format(),
-        'end-date': moment($scope.datePickerEnd.selected).format(),
+        'start-date': moment($scope.datePickerStart.selected).format('YYYY-MM-DD'),
+        'end-date': moment($scope.datePickerEnd.selected).format('YYYY-MM-DD'),
         body: buildElasticDataQuery(type, custom, $scope.agePicker.start, $scope.agePicker.end, moment($scope.datePickerStart.selected), moment($scope.datePickerEnd.selected), $scope.sorting)
       }
       , function (error, response) {
@@ -541,8 +541,8 @@ Application.Controllers.controller('StatisticsController', ['$scope', '$state',
               {
                 range: {
                   date: {
-                    gte: intervalBegin.format(),
-                    lte: intervalEnd.format()
+                    gte: intervalBegin.format('YYYY-MM-DD'),
+                    lte: intervalEnd.format('YYYY-MM-DD')
                   }
                 }
               }
@@ -780,8 +780,8 @@ Application.Controllers.controller('ExportStatisticsController', ['$scope', '$ui
                 {
                   range: {
                     date: {
-                      gte: moment($scope.dates.start).format(),
-                      lte: moment($scope.dates.end).format()
+                      gte: moment($scope.dates.start).format('YYYY-MM-DD'),
+                      lte: moment($scope.dates.end).format('YYYY-MM-DD')
                     }
                   }
                 }
diff --git a/app/frontend/src/javascript/controllers/application.js b/app/frontend/src/javascript/controllers/application.js
index a2fcbc872..846c5eb40 100644
--- a/app/frontend/src/javascript/controllers/application.js
+++ b/app/frontend/src/javascript/controllers/application.js
@@ -128,7 +128,7 @@ Application.Controllers.controller('ApplicationController', ['$rootScope', '$sco
 
             // default user's parameters
             $scope.user = {
-              is_allow_contact: true,
+              is_allow_contact: false,
               is_allow_newsletter: false,
               // reCaptcha response, received from Google (through AJAX) and sent to server for validation
               recaptcha: undefined,
diff --git a/app/frontend/src/stylesheets/modules/base/fab-tooltip.scss b/app/frontend/src/stylesheets/modules/base/fab-tooltip.scss
index cd03e763d..8f3499d30 100644
--- a/app/frontend/src/stylesheets/modules/base/fab-tooltip.scss
+++ b/app/frontend/src/stylesheets/modules/base/fab-tooltip.scss
@@ -1,6 +1,8 @@
 .fab-tooltip {
   position: relative;
+  display: inline-block;
   cursor: help;
+  z-index: 10;
 
   .trigger i { display: block; }
   .content {
diff --git a/app/frontend/src/stylesheets/modules/user/user-profile-form.scss b/app/frontend/src/stylesheets/modules/user/user-profile-form.scss
index f388e2af4..21b78b415 100644
--- a/app/frontend/src/stylesheets/modules/user/user-profile-form.scss
+++ b/app/frontend/src/stylesheets/modules/user/user-profile-form.scss
@@ -27,6 +27,7 @@
         margin: 0;
       }
     }
+    .trainings { max-width: none; }
   }
 
   .main-actions {
diff --git a/app/frontend/templates/admin/projects/project_categories.html b/app/frontend/templates/admin/projects/project_categories.html
index 36667205b..37881502e 100644
--- a/app/frontend/templates/admin/projects/project_categories.html
+++ b/app/frontend/templates/admin/projects/project_categories.html
@@ -10,12 +10,11 @@
   <tbody>
   <tr ng-repeat="projectCategory in projectCategories">
     <td>
-                  <span editable-text="projectCategory.name" e-name="name" e-form="rowform" e-required>
-                    {{ projectCategory.name }}
-                  </span>
+      <span editable-text="projectCategory.name" e-name="name" e-form="rowform" e-required>
+        {{ projectCategory.name }}
+      </span>
     </td>
     <td>
-      <!-- form -->
       <form editable-form name="rowform" onbeforesave="saveProjectCategory($data, projectCategory.id)" ng-show="rowform.$visible" class="form-buttons form-inline" shown="inserted == projectCategory">
         <button type="submit" ng-disabled="rowform.$waiting" class="btn btn-warning">
           <i class="fa fa-check"></i>
diff --git a/app/frontend/templates/machines/index.html b/app/frontend/templates/machines/index.html
index 2bb53d553..5c597ef40 100644
--- a/app/frontend/templates/machines/index.html
+++ b/app/frontend/templates/machines/index.html
@@ -13,7 +13,7 @@
   </div>
 </section>
 
-<section class="machines"
+<section class="machines p-h-lg"
          ui-tour="machines"
          ui-tour-backdrop="true"
          ui-tour-template-url="'/shared/tour-step-template.html'"
diff --git a/app/frontend/templates/projects/index.html b/app/frontend/templates/projects/index.html
index 276258d3e..fde57a138 100644
--- a/app/frontend/templates/projects/index.html
+++ b/app/frontend/templates/projects/index.html
@@ -61,7 +61,7 @@
         <option value="" translate>{{ 'app.public.projects_list.all_themes' }}</option>
       </select>
 
-      <select ng-model="search.project_category_id" ng-change="setUrlQueryParams(search) && triggerSearch()" class="form-control" ng-options="pc.id as pc.name for pc in projectCategories">
+      <select ng-show="projectCategories.length" ng-model="search.project_category_id" ng-change="setUrlQueryParams(search) && triggerSearch()" class="form-control" ng-options="pc.id as pc.name for pc in projectCategories">
         <option value="" translate>{{ projectCategoriesFilterPlaceholder }}</option>
       </select>
 
diff --git a/app/frontend/templates/shared/signupModal.html b/app/frontend/templates/shared/signupModal.html
index 60ead0663..00413f4d7 100644
--- a/app/frontend/templates/shared/signupModal.html
+++ b/app/frontend/templates/shared/signupModal.html
@@ -23,7 +23,11 @@
                      ng-model="user.statistic_profile_attributes.gender"
                      value="false"/> {{ 'app.public.common.woman' | translate }}
             </label>
-            <span class="exponent m-l-xs help-cursor" title="{{ 'app.public.common.used_for_statistics' | translate }}"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
+            <div class="fab-tooltip">
+              <span class="trigger"><i class="fa fa-question-circle"></i></span>
+              <div class="content" translate="">{{ 'app.public.common.used_for_statistics' }}</div>
+            </div>
+            <span class="exponent m-l-xs"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
             <span class="help-block" ng-show="signupForm.gender.$dirty && signupForm.gender.$error.required" translate>{{ 'app.public.common.gender_is_required'}}</span>
           </div>
         </div>
@@ -37,7 +41,7 @@
                    class="form-control"
                    placeholder="{{ 'app.public.common.your_first_name' | translate }}"
                    required>
-            <span class="exponent m-l-xs help-cursor" title="{{ 'app.public.common.used_for_invoicing' | translate }}"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
+            <span class="exponent m-l-xs"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
             <span class="help-block" ng-show="signupForm.first_name.$dirty && signupForm.first_name.$error.required" translate>{{ 'app.public.common.first_name_is_required' }}</span>
           </div>
           <div class="m-b visible-xs"></div>
@@ -48,7 +52,7 @@
                    class="form-control"
                    placeholder="{{ 'app.public.common.your_surname' | translate }}"
                    required>
-            <span class="exponent m-l-xs help-cursor" title="{{ 'app.public.common.used_for_invoicing' | translate }}"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
+            <span class="exponent m-l-xs"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
             <span class="help-block" ng-show="signupForm.last_name.$dirty && signupForm.last_name.$error.required" translate>{{ 'app.public.common.surname_is_required' }}</span>
           </div>
         </div>
@@ -64,7 +68,7 @@
                      placeholder="{{ 'app.public.common.your_pseudonym' | translate }}"
                      required>
             </div>
-            <span class="exponent help-cursor" title="{{ 'app.public.common.used_for_profile' | translate }}"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
+            <span class="exponent"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
             <span class="help-block" ng-show="signupForm.username.$dirty && signupForm.username.$error.required" translate>{{ 'app.public.common.pseudonym_is_required' }}</span>
           </div>
         </div>
@@ -81,7 +85,7 @@
                      placeholder="{{ 'app.public.common.your_email_address' | translate }}"
                      required>
             </div>
-            <span class="exponent help-cursor" title="{{ 'app.public.common.used_for_invoicing' | translate }}"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
+            <span class="exponent"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
             <span class="help-block" ng-show="signupForm.email.$dirty && signupForm.email.$error.required" translate>{{ 'app.public.common.email_is_required' }}</span>
           </div>
         </div>
@@ -130,6 +134,10 @@
                    ng-model="user.organization"
                    value="false"/>
             <label for="organization" translate>{{ 'app.public.common.i_am_an_organization' }}</label>
+            <div class="fab-tooltip m-l-xs">
+              <span class="trigger"><i class="fa fa-question-circle"></i></span>
+              <div class="content" translate="">{{ 'app.shared.user_profile_form.declare_organization_help' }}</div>
+            </div>
           </div>
         </div>
 
@@ -144,7 +152,7 @@
                      placeholder="{{ 'app.public.common.name_of_your_organization' | translate }}"
                      ng-required="user.organization">
             </div>
-            <span class="exponent help-cursor" title="{{ 'app.public.common.used_for_invoicing' | translate }}"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
+            <span class="exponent"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
             <span class="help-block" ng-show="signupForm.organization_name.$dirty && signupForm.organization_name.$error.required" translate>{{ 'app.public.common.organization_name_is_required' }}</span>
           </div>
         </div>
@@ -160,7 +168,7 @@
                      placeholder="{{ 'app.public.common.address_of_your_organization' | translate }}"
                      ng-required="user.organization">
             </div>
-            <span class="exponent help-cursor" title="{{ 'app.public.common.used_for_invoicing' | translate }}"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
+            <span class="exponent"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
             <span class="help-block" ng-show="signupForm.organization_address.$dirty && signupForm.organization_address.$error.required" translate>{{ 'app.public.common.organization_address_is_required' }}</span>
           </div>
         </div>
@@ -177,7 +185,7 @@
                        placeholder="{{profileCustomField.label}}"
                        ng-required="profileCustomField.required">
               </div>
-              <span ng-show="profileCustomField.required" class="exponent help-cursor" title="{{ 'app.public.common.used_for_invoicing' | translate }}"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
+              <span ng-show="profileCustomField.required" class="exponent"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
               <span class="help-block" ng-show="signupForm.user_profile_custom_fields{{i}}.$dirty && signupForm.user_profile_custom_fields{{i}}.$error.required" translate translate-values="{FEILD: profileCustomField.label}">{{ 'app.public.common.profile_custom_field_is_required' }}</span>
             </div>
           </div>
@@ -189,7 +197,7 @@
               <select ng-model="user.group_id" class="form-control" name="group_id" ng-options="g.id as g.name for g in enabledGroups" required>
                 <option value="" translate>{{ 'app.public.common.your_user_s_profile' }}</option>
               </select>
-              <span class="exponent exponent-select help-cursor" title="{{ 'app.public.common.used_for_invoicing' | translate }}"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
+              <span class="exponent exponent-select"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
             </div>
             <span class="help-block" ng-show="signupForm.group_id.$dirty && signupForm.group_id.$error.required" translate>{{ 'app.public.common.user_s_profile_is_required' }}</span>
           </div>
@@ -216,7 +224,7 @@
                      ng-click="openDatePicker($event)"
                      required/>
             </div>
-            <span class="exponent help-cursor" title="{{ 'app.public.common.used_for_statistics' | translate }}"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
+            <span class="exponent"><i class="fa fa-asterisk" aria-hidden="true"></i></span>
             <span class="help-block" ng-show="signupForm.birthday.$dirty && signupForm.birthday.$error.required" translate>{{ 'app.public.common.birth_date_is_required' }}</span>
           </div>
         </div>
@@ -263,8 +271,12 @@
                    name="is_allow_contact"
                    id="is_allow_contact"
                    ng-model="user.is_allow_contact"
-                   value="true"/>
-            <label for="is_allow_contact" class="help-cursor" title="{{ 'app.public.common.public_profile' | translate }}" translate>{{ 'app.public.common.i_authorize_Fablab_users_registered_on_the_site_to_contact_me' }}</label>
+                   value="false"/>
+            <label for="is_allow_contact" translate>{{ 'app.public.common.i_authorize_Fablab_users_registered_on_the_site_to_contact_me' }}</label>
+            <div class="fab-tooltip">
+              <span class="trigger"><i class="fa fa-question-circle"></i></span>
+              <div class="content" translate="">{{ 'app.public.common.public_profile' }}</div>
+            </div>
           </div>
         </div>
 
@@ -274,7 +286,7 @@
                    name="is_allow_newsletter"
                    id="is_allow_newsletter"
                    ng-model="user.is_allow_newsletter"
-                   value="true"/>
+                   value="false"/>
             <label for="is_allow_newsletter" translate>{{ 'app.public.common.i_accept_to_receive_information_from_the_fablab' }}</label>
           </div>
         </div>
@@ -285,7 +297,7 @@
                    name="cgu"
                    id="cgu"
                    ng-model="user.cgu"
-                   value="true"
+                   value="false"
                    ng-required="cgu != null"/>
             <label for="cgu">
               <span translate>{{ 'app.public.common.i_ve_read_and_i_accept_' }}</span>
diff --git a/app/services/slots/places_cache_service.rb b/app/services/slots/places_cache_service.rb
index 65a19b733..789728700 100644
--- a/app/services/slots/places_cache_service.rb
+++ b/app/services/slots/places_cache_service.rb
@@ -32,7 +32,11 @@ class Slots::PlacesCacheService
 
         reserved_places = (reservations[:reservations].count || 0) + (pending[:reservations].count || 0)
         if slot.availability.available_type == 'event'
-          reserved_places = slot.availability.event.nb_total_places - slot.availability.event.nb_free_places
+          reserved_places = if slot.availability.event.nb_total_places.nil?
+                              0
+                            else
+                              slot.availability.event.nb_total_places - slot.availability.event.nb_free_places
+                            end
         end
         places.push({
                       reservable_type: reservable.class.name,
diff --git a/config/locales/app.admin.de.yml b/config/locales/app.admin.de.yml
index fa60516d2..707926c89 100644
--- a/config/locales/app.admin.de.yml
+++ b/config/locales/app.admin.de.yml
@@ -451,6 +451,8 @@ de:
           project_categories: Categories
       project_categories:
         name: "Name"
+        delete_dialog_title: "Confirmation required"
+        delete_dialog_info: "The associations between this category and the projects will me deleted."
       projects_setting:
         add: "Hinzufügen"
         actions_controls: "Actions"
diff --git a/config/locales/app.admin.en.yml b/config/locales/app.admin.en.yml
index a5ae4efe3..3ecbf8654 100644
--- a/config/locales/app.admin.en.yml
+++ b/config/locales/app.admin.en.yml
@@ -459,6 +459,8 @@ en:
           project_categories: Categories
       project_categories:
         name: "Name"
+        delete_dialog_title: "Confirmation required"
+        delete_dialog_info: "The associations between this category and the projects will me deleted."
       projects_setting:
         add: "Add"
         actions_controls: "Actions"
diff --git a/config/locales/app.admin.es.yml b/config/locales/app.admin.es.yml
index d230e753b..b544b6cb5 100644
--- a/config/locales/app.admin.es.yml
+++ b/config/locales/app.admin.es.yml
@@ -451,6 +451,8 @@ es:
           project_categories: Categories
       project_categories:
         name: "Name"
+        delete_dialog_title: "Confirmation required"
+        delete_dialog_info: "The associations between this category and the projects will me deleted."
       projects_setting:
         add: "Add"
         actions_controls: "Actions"
diff --git a/config/locales/app.admin.fr.yml b/config/locales/app.admin.fr.yml
index 19c386f97..1cb1f1ffe 100644
--- a/config/locales/app.admin.fr.yml
+++ b/config/locales/app.admin.fr.yml
@@ -459,6 +459,8 @@ fr:
           project_categories: Personnalisation du filtre Catégories
       project_categories:
         name: "Nom"
+        delete_dialog_title: "Confirmation requise"
+        delete_dialog_info: "Les associations entre cette catégorie et les projets seront supprimées."
       projects_setting:
         add: "Ajouter"
         actions_controls: "Actions"
diff --git a/config/locales/app.admin.it.yml b/config/locales/app.admin.it.yml
index 102b4ef2f..3e088e3ac 100644
--- a/config/locales/app.admin.it.yml
+++ b/config/locales/app.admin.it.yml
@@ -451,6 +451,8 @@ it:
           project_categories: Categories
       project_categories:
         name: "Name"
+        delete_dialog_title: "Confirmation required"
+        delete_dialog_info: "The associations between this category and the projects will me deleted."
       projects_setting:
         add: "Aggiungi"
         actions_controls: "Azioni"
diff --git a/config/locales/app.admin.no.yml b/config/locales/app.admin.no.yml
index 67b76790e..8603ff6e3 100644
--- a/config/locales/app.admin.no.yml
+++ b/config/locales/app.admin.no.yml
@@ -451,6 +451,8 @@
           project_categories: Categories
       project_categories:
         name: "Name"
+        delete_dialog_title: "Confirmation required"
+        delete_dialog_info: "The associations between this category and the projects will me deleted."
       projects_setting:
         add: "Add"
         actions_controls: "Actions"
diff --git a/config/locales/app.admin.pt.yml b/config/locales/app.admin.pt.yml
index 05eb8c93b..524f4b2b4 100644
--- a/config/locales/app.admin.pt.yml
+++ b/config/locales/app.admin.pt.yml
@@ -451,6 +451,8 @@ pt:
           project_categories: Categories
       project_categories:
         name: "Name"
+        delete_dialog_title: "Confirmation required"
+        delete_dialog_info: "The associations between this category and the projects will me deleted."
       projects_setting:
         add: "Add"
         actions_controls: "Actions"
diff --git a/config/locales/app.admin.zu.yml b/config/locales/app.admin.zu.yml
index 9977ec4cb..858399e1e 100644
--- a/config/locales/app.admin.zu.yml
+++ b/config/locales/app.admin.zu.yml
@@ -451,6 +451,8 @@ zu:
           project_categories: crwdns37623:0crwdne37623:0
       project_categories:
         name: "crwdns37625:0crwdne37625:0"
+        delete_dialog_title: "crwdns37665:0crwdne37665:0"
+        delete_dialog_info: "crwdns37667:0crwdne37667:0"
       projects_setting:
         add: "crwdns36895:0crwdne36895:0"
         actions_controls: "crwdns36897:0crwdne36897:0"
diff --git a/config/locales/app.public.de.yml b/config/locales/app.public.de.yml
index b8f0a9d2b..2deffc1ae 100644
--- a/config/locales/app.public.de.yml
+++ b/config/locales/app.public.de.yml
@@ -93,7 +93,7 @@ de:
         phone_number_is_required: "Die Angabe der Telefonnummer ist erforderlich."
         address: "Adresse"
         address_is_required: "Adresse ist erforderlich"
-        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "Angemeldete Benutzer dürfen mich kontaktieren"
+        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "I agree to share my email address with registered users of the site"
         i_accept_to_receive_information_from_the_fablab: "Das Fablab darf mir Informationen schicken"
         i_ve_read_and_i_accept_: "Ich habe gelesen und akzeptiere"
         _the_fablab_policy: "the terms of use"
diff --git a/config/locales/app.public.en.yml b/config/locales/app.public.en.yml
index 852d74908..e4a41bbb9 100644
--- a/config/locales/app.public.en.yml
+++ b/config/locales/app.public.en.yml
@@ -94,7 +94,7 @@ en:
         phone_number_is_required: "Phone number is required."
         address: "Address"
         address_is_required: "Address is required"
-        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "I authorize users, registered on the site, to contact me"
+        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "I agree to share my email address with registered users of the site"
         i_accept_to_receive_information_from_the_fablab: "I accept to receive information from the FabLab"
         i_ve_read_and_i_accept_: "I've read and I accept"
         _the_fablab_policy: "the terms of use"
diff --git a/config/locales/app.public.es.yml b/config/locales/app.public.es.yml
index d884d4321..55df5486d 100644
--- a/config/locales/app.public.es.yml
+++ b/config/locales/app.public.es.yml
@@ -93,7 +93,7 @@ es:
         phone_number_is_required: "El número de telefono es obligatorio."
         address: "Dirección"
         address_is_required: "Address is required"
-        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "Autorizo a los usuarios registrados en el sitio, a contactarme"
+        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "I agree to share my email address with registered users of the site"
         i_accept_to_receive_information_from_the_fablab: "Acepto recibir información del FabLab"
         i_ve_read_and_i_accept_: "He leido y acepto"
         _the_fablab_policy: "the terms of use"
diff --git a/config/locales/app.public.fr.yml b/config/locales/app.public.fr.yml
index 2edeed6a5..18116ee23 100644
--- a/config/locales/app.public.fr.yml
+++ b/config/locales/app.public.fr.yml
@@ -94,7 +94,7 @@ fr:
         phone_number_is_required: "Le numéro de téléphone est requis."
         address: "Adresse"
         address_is_required: "L'adresse est requise"
-        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "J'autorise les utilisateurs inscrits sur le site à me contacter"
+        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "J'accepte de partager mon adresse courriel avec les utilisateurs enregistrés sur le site"
         i_accept_to_receive_information_from_the_fablab: "J'accepte de recevoir des informations du Fab Lab"
         i_ve_read_and_i_accept_: "J'ai lu et j'accepte"
         _the_fablab_policy: "les conditions d'utilisation"
diff --git a/config/locales/app.public.it.yml b/config/locales/app.public.it.yml
index 3b48a4ebb..8f0b8c606 100644
--- a/config/locales/app.public.it.yml
+++ b/config/locales/app.public.it.yml
@@ -93,7 +93,7 @@ it:
         phone_number_is_required: "Il numero di telefono è obbligatorio."
         address: "Indirizzo"
         address_is_required: "L'indirizzo è obbligatorio"
-        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "Autorizzo gli utenti, registrati sul sito, a contattarmi"
+        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "I agree to share my email address with registered users of the site"
         i_accept_to_receive_information_from_the_fablab: "Autorizzo FabLab all'invio di informative"
         i_ve_read_and_i_accept_: "Ho letto e accetto"
         _the_fablab_policy: "le condizioni di utilizzo"
diff --git a/config/locales/app.public.no.yml b/config/locales/app.public.no.yml
index b1753896c..61c41ae2a 100644
--- a/config/locales/app.public.no.yml
+++ b/config/locales/app.public.no.yml
@@ -93,7 +93,7 @@
         phone_number_is_required: "Telefonnummer er påkrevd."
         address: "Adresse"
         address_is_required: "Adresse er påkrevd"
-        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "I authorize users, registered on the site, to contact me"
+        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "I agree to share my email address with registered users of the site"
         i_accept_to_receive_information_from_the_fablab: "Jeg aksepterer å motta informasjon"
         i_ve_read_and_i_accept_: "Jeg har lest og aksepterer"
         _the_fablab_policy: "the terms of use"
diff --git a/config/locales/app.public.pt.yml b/config/locales/app.public.pt.yml
index 3fcaaec49..53e72c964 100644
--- a/config/locales/app.public.pt.yml
+++ b/config/locales/app.public.pt.yml
@@ -93,7 +93,7 @@ pt:
         phone_number_is_required: "Número de telefone é obrigatório."
         address: "Endereço"
         address_is_required: "O endereço é necessário"
-        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "Eu autorizo usuários, registrados no site, a entrarem em contato comigo"
+        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "I agree to share my email address with registered users of the site"
         i_accept_to_receive_information_from_the_fablab: "Eu aceito receber informações do FabLab"
         i_ve_read_and_i_accept_: "Eu li e aceito"
         _the_fablab_policy: "os termos de uso"
diff --git a/config/locales/app.public.zu.yml b/config/locales/app.public.zu.yml
index 417ead98d..653769da8 100644
--- a/config/locales/app.public.zu.yml
+++ b/config/locales/app.public.zu.yml
@@ -93,7 +93,7 @@ zu:
         phone_number_is_required: "crwdns27938:0crwdne27938:0"
         address: "crwdns27940:0crwdne27940:0"
         address_is_required: "crwdns27942:0crwdne27942:0"
-        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "crwdns36223:0crwdne36223:0"
+        i_authorize_Fablab_users_registered_on_the_site_to_contact_me: "crwdns37669:0crwdne37669:0"
         i_accept_to_receive_information_from_the_fablab: "crwdns27946:0crwdne27946:0"
         i_ve_read_and_i_accept_: "crwdns27948:0crwdne27948:0"
         _the_fablab_policy: "crwdns36225:0crwdne36225:0"
diff --git a/config/locales/app.shared.de.yml b/config/locales/app.shared.de.yml
index 1b3933934..25c057ac6 100644
--- a/config/locales/app.shared.de.yml
+++ b/config/locales/app.shared.de.yml
@@ -86,10 +86,9 @@ de:
         address: "Address"
         phone_number: "Phone number"
         phone_number_invalid: "Phone number is invalid."
-        allow_public_profile: "I authorize users, registered on the site, to contact me"
-        allow_public_profile_help: "Your profile will be visible to other users and you'll be able to collaborate on projects."
+        allow_public_profile: "I agree to share my email address with registered users of the site"
+        allow_public_profile_help: "You will have a public profile and other users will be able to associate you in their projects."
         allow_newsletter: "I accept to receive information from the FabLab"
-        allow_newsletter_help: "You may receive the newsletter."
         used_for_statistics: "This data will be used for statistical purposes"
         used_for_invoicing: "This data will be used for billing purposes"
         used_for_reservation: "This data will be used in case of change on one of your bookings"
diff --git a/config/locales/app.shared.en.yml b/config/locales/app.shared.en.yml
index 3a05387af..5f2717aab 100644
--- a/config/locales/app.shared.en.yml
+++ b/config/locales/app.shared.en.yml
@@ -86,10 +86,9 @@ en:
         address: "Address"
         phone_number: "Phone number"
         phone_number_invalid: "Phone number is invalid."
-        allow_public_profile: "I authorize users, registered on the site, to contact me"
-        allow_public_profile_help: "Your profile will be visible to other users and you'll be able to collaborate on projects."
+        allow_public_profile: "I agree to share my email address with registered users of the site"
+        allow_public_profile_help: "You will have a public profile and other users will be able to associate you in their projects."
         allow_newsletter: "I accept to receive information from the FabLab"
-        allow_newsletter_help: "You may receive the newsletter."
         used_for_statistics: "This data will be used for statistical purposes"
         used_for_invoicing: "This data will be used for billing purposes"
         used_for_reservation: "This data will be used in case of change on one of your bookings"
diff --git a/config/locales/app.shared.es.yml b/config/locales/app.shared.es.yml
index f4ec89c84..5c0be6567 100644
--- a/config/locales/app.shared.es.yml
+++ b/config/locales/app.shared.es.yml
@@ -86,10 +86,9 @@ es:
         address: "Address"
         phone_number: "Phone number"
         phone_number_invalid: "Phone number is invalid."
-        allow_public_profile: "I authorize users, registered on the site, to contact me"
-        allow_public_profile_help: "Your profile will be visible to other users and you'll be able to collaborate on projects."
+        allow_public_profile: "I agree to share my email address with registered users of the site"
+        allow_public_profile_help: "You will have a public profile and other users will be able to associate you in their projects."
         allow_newsletter: "I accept to receive information from the FabLab"
-        allow_newsletter_help: "You may receive the newsletter."
         used_for_statistics: "This data will be used for statistical purposes"
         used_for_invoicing: "This data will be used for billing purposes"
         used_for_reservation: "This data will be used in case of change on one of your bookings"
diff --git a/config/locales/app.shared.fr.yml b/config/locales/app.shared.fr.yml
index da57e2093..be9492f7b 100644
--- a/config/locales/app.shared.fr.yml
+++ b/config/locales/app.shared.fr.yml
@@ -86,10 +86,9 @@ fr:
         address: "Adresse"
         phone_number: "Numéro de téléphone"
         phone_number_invalid: "Le numéro de téléphone n'est pas valide."
-        allow_public_profile: "J'autorise les utilisateurs inscrits sur le site à me contacter"
-        allow_public_profile_help: "Votre profil sera visible par les autres utilisateurs et vous pourrez collaborer aux projets."
+        allow_public_profile: "J'accepte de partager mon adresse courriel avec les utilisateurs enregistrés sur le site"
+        allow_public_profile_help: "Vous aurez un profil public et les autres utilisateurs pourront vous associer à leurs projets."
         allow_newsletter: "J'accepte de recevoir des informations du Fab Lab"
-        allow_newsletter_help: "Vous pourriez recevoir la newsletter."
         used_for_statistics: "Cette donnée sera utilisée à des fins statistiques"
         used_for_invoicing: "Cette donnée sera utilisée à des fins de facturation"
         used_for_reservation: "Cette donnée sera utilisée en cas de changement sur une de vos réservations"
diff --git a/config/locales/app.shared.it.yml b/config/locales/app.shared.it.yml
index 785ca0ad6..e6581ce10 100644
--- a/config/locales/app.shared.it.yml
+++ b/config/locales/app.shared.it.yml
@@ -86,10 +86,9 @@ it:
         address: "Indirizzo"
         phone_number: "Numero di telefono"
         phone_number_invalid: "Numero di telefono non valido."
-        allow_public_profile: "Autorizzo gli utenti, registrati sul sito, a contattarmi"
-        allow_public_profile_help: "Il tuo profilo sarà visibile ad altri utenti e sarai in grado di collaborare ai progetti."
+        allow_public_profile: "I agree to share my email address with registered users of the site"
+        allow_public_profile_help: "You will have a public profile and other users will be able to associate you in their projects."
         allow_newsletter: "Accetto di ricevere informative da FabLab"
-        allow_newsletter_help: "Potresti ricevere la newsletter."
         used_for_statistics: "Questi dati saranno utilizzati a fini statistici"
         used_for_invoicing: "Questi dati saranno utilizzati per la fatturazione"
         used_for_reservation: "Questi dati saranno utilizzati in caso di modifica di una delle tue prenotazioni"
diff --git a/config/locales/app.shared.no.yml b/config/locales/app.shared.no.yml
index 794b127c9..1812e7793 100644
--- a/config/locales/app.shared.no.yml
+++ b/config/locales/app.shared.no.yml
@@ -86,10 +86,9 @@
         address: "Address"
         phone_number: "Phone number"
         phone_number_invalid: "Phone number is invalid."
-        allow_public_profile: "I authorize users, registered on the site, to contact me"
-        allow_public_profile_help: "Your profile will be visible to other users and you'll be able to collaborate on projects."
+        allow_public_profile: "I agree to share my email address with registered users of the site"
+        allow_public_profile_help: "You will have a public profile and other users will be able to associate you in their projects."
         allow_newsletter: "I accept to receive information from the FabLab"
-        allow_newsletter_help: "You may receive the newsletter."
         used_for_statistics: "This data will be used for statistical purposes"
         used_for_invoicing: "This data will be used for billing purposes"
         used_for_reservation: "This data will be used in case of change on one of your bookings"
diff --git a/config/locales/app.shared.pt.yml b/config/locales/app.shared.pt.yml
index 45fdce1af..3e1c0a272 100644
--- a/config/locales/app.shared.pt.yml
+++ b/config/locales/app.shared.pt.yml
@@ -86,10 +86,9 @@ pt:
         address: "Endereço"
         phone_number: "Número de telefone"
         phone_number_invalid: "O número de telefone é inválido."
-        allow_public_profile: "Eu autorizo usuários do FabLab, registrados no site, a entrarem em contato comigo"
-        allow_public_profile_help: "Seu perfil ficará visível para outros usuários e você poderá colaborar em projetos."
+        allow_public_profile: "I agree to share my email address with registered users of the site"
+        allow_public_profile_help: "You will have a public profile and other users will be able to associate you in their projects."
         allow_newsletter: "Eu aceito receber informações do FabLab"
-        allow_newsletter_help: "Você poderá receber a newsletter."
         used_for_statistics: "Estes dados serão utilizados para fins estatísticos"
         used_for_invoicing: "Esses dados serão usados para fins de faturamento"
         used_for_reservation: "Estes dados serão utilizados em caso de alteração em uma das suas reservas"
diff --git a/config/locales/app.shared.zu.yml b/config/locales/app.shared.zu.yml
index d2a83c3a4..07f99e598 100644
--- a/config/locales/app.shared.zu.yml
+++ b/config/locales/app.shared.zu.yml
@@ -86,10 +86,9 @@ zu:
         address: "crwdns28670:0crwdne28670:0"
         phone_number: "crwdns28672:0crwdne28672:0"
         phone_number_invalid: "crwdns28674:0crwdne28674:0"
-        allow_public_profile: "crwdns28676:0crwdne28676:0"
-        allow_public_profile_help: "crwdns28678:0crwdne28678:0"
+        allow_public_profile: "crwdns37671:0crwdne37671:0"
+        allow_public_profile_help: "crwdns37673:0crwdne37673:0"
         allow_newsletter: "crwdns28680:0crwdne28680:0"
-        allow_newsletter_help: "crwdns28682:0crwdne28682:0"
         used_for_statistics: "crwdns28684:0crwdne28684:0"
         used_for_invoicing: "crwdns28686:0crwdne28686:0"
         used_for_reservation: "crwdns28688:0crwdne28688:0"
diff --git a/package.json b/package.json
index 4f5e16cdb..b74e94ca6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "fab-manager",
-  "version": "6.0.10",
+  "version": "6.0.11",
   "description": "Fab-manager is the FabLab management solution. It provides a comprehensive, web-based, open-source tool to simplify your administrative tasks and your marker's projects.",
   "keywords": [
     "fablab",