To fix that, logon as the `postgres` user and run the PostgreSQL shell (see [the postgresql documentation](postgresql_readme.md#run-postgresql-cli) for instructions).
Then, run the following command (replace `sleede` with your test database user, as specified in your database.yml):
ALTER ROLE sleede WITH SUPERUSER;
DO NOT do this in a production environment, unless you know what you're doing: this could lead to a serious security issue.
<aname="production"></a>
## Production
- Due to a stripe limitation, you won't be able to create plans longer than one year.
- In some cases, the invoices won't be generated. This can be due to the image included in the invoice header not being supported.
To fix this issue, change the image in the administrator interface (manage the invoices / invoices settings).
See [this thread](https://forum.fab-manager.com/t/resolu-erreur-generation-facture/428) for more info.
- In the excel exports, if the cells expected to contain dates are showing strange numbers, check that you have correctly configured the [EXCEL_DATE_FORMAT](environment.md#EXCEL_DATE_FORMAT) variable.