diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5abf69883..a40ad652b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@
 
 - Fix a bug: for project categories, if there is no category : do not show categories panel in show view, do not show categories input field in edit view
 - Fix a bug: unable to update status to paid for latest payment schedule item
+- Fix a bug: unable to generate statistic
+- [TODO DEPLOY] `rails fablab:maintenance:regenerate_statistics[2014,1]`
 
 ## v6.0.13 2023 August 28
 
diff --git a/app/services/statistics/fetcher_service.rb b/app/services/statistics/fetcher_service.rb
index 9f5697c1e..58717e9c0 100644
--- a/app/services/statistics/fetcher_service.rb
+++ b/app/services/statistics/fetcher_service.rb
@@ -50,6 +50,8 @@ class Statistics::FetcherService
         .eager_load(:slots, :slots_reservations, :invoice_items, :reservation_context, statistic_profile: [:group])
         .find_each do |r|
         next unless r.reservable
+        next unless r.original_invoice
+        next if r.slots.empty?
 
         profile = r.statistic_profile
         result = { date: r.created_at.to_date,
@@ -61,8 +63,7 @@ class Statistics::FetcherService
                    nb_hours: (r.slots.map(&:duration).map(&:to_i).reduce(:+) / 3600.0).to_f,
                    ca: calcul_ca(r.original_invoice),
                    reservation_context_id: r.reservation_context_id,
-                   coupon: r.original_invoice.coupon&.code
-                  }.merge(user_info(profile))
+                   coupon: r.original_invoice.coupon&.code }.merge(user_info(profile))
         yield result
       end
     end
@@ -77,6 +78,8 @@ class Statistics::FetcherService
         .eager_load(:slots, :slots_reservations, :invoice_items, :reservation_context, statistic_profile: [:group])
         .find_each do |r|
         next unless r.reservable
+        next unless r.original_invoice
+        next if r.slots.empty?
 
         profile = r.statistic_profile
         result = { date: r.created_at.to_date,
@@ -88,8 +91,7 @@ class Statistics::FetcherService
                    nb_hours: (r.slots.map(&:duration).map(&:to_i).reduce(:+) / 3600.0).to_f,
                    ca: calcul_ca(r.original_invoice),
                    reservation_context_id: r.reservation_context_id,
-                   coupon: r.original_invoice.coupon&.code
-                  }.merge(user_info(profile))
+                   coupon: r.original_invoice.coupon&.code }.merge(user_info(profile))
         yield result
       end
     end
@@ -104,6 +106,7 @@ class Statistics::FetcherService
         .eager_load(:slots, :slots_reservations, :invoice_items, :reservation_context, statistic_profile: [:group])
         .find_each do |r|
         next unless r.reservable
+        next unless r.original_invoice
 
         profile = r.statistic_profile
         slot = r.slots.first
@@ -116,8 +119,7 @@ class Statistics::FetcherService
                    nb_hours: difference_in_hours(slot.start_at, slot.end_at),
                    ca: calcul_ca(r.original_invoice),
                    reservation_context_id: r.reservation_context_id,
-                   coupon: r.original_invoice&.coupon&.code
-                 }.merge(user_info(profile))
+                   coupon: r.original_invoice&.coupon&.code }.merge(user_info(profile))
         yield result
       end
     end
@@ -161,6 +163,7 @@ class Statistics::FetcherService
                  .eager_load(:slots, :invoice_items, statistic_profile: [:group])
                  .find_each do |r|
         next unless r.reservable
+        next unless r.statistic_profile
 
         reservations_ca_list.push(
           { date: r.created_at.to_date, ca: calcul_ca(r.original_invoice) || 0 }.merge(user_info(r.statistic_profile))
@@ -171,6 +174,8 @@ class Statistics::FetcherService
            .find_each do |i|
         # the following line is a workaround for issue #196
         profile = i.statistic_profile || i.main_item.object&.wallet&.user&.statistic_profile
+        next unless profile
+
         avoirs_ca_list.push({ date: i.created_at.to_date, ca: calcul_avoir_ca(i) || 0 }.merge(user_info(profile)))
       end
       reservations_ca_list.concat(subscriptions_ca_list).concat(avoirs_ca_list).each do |e|
@@ -221,6 +226,8 @@ class Statistics::FetcherService
            .where('order_activities.created_at >= :start_date AND order_activities.created_at <= :end_date', options)
            .group('orders.id')
            .find_each do |o|
+        next unless o.invoice
+
         result = { date: o.created_at.to_date, ca: calcul_ca(o.invoice), coupon: o.invoice.coupon&.code }
                  .merge(user_info(o.statistic_profile))
                  .merge(store_order_info(o))