SEBLOD users cannot be managed from the backend

[kimbare]

When I add a user from the backend, none of the information I add is saved. I add a first name, a last name, etc. and when I hit save, all the information goes away. The user number stays, but all other information disappears. I am using the user form supplied by SEBLOD.

I have SEBLOD 4.3.0, joomla 4.4.1 and php 8.1