This is a comment on Error when creating a new user, posted by WikiAdmin at 03/10/2026 20:59
View source for Aw: Error when creating a new user
<[Debugging]> I think the error is before the insert/update into the DB, because PHP itself gives the following error messages regarding undefined variables. %% PHP Warning: Undefined variable $user in /wiki/admin/module/user_users.php on line 687 PHP Warning: Trying to access array offset on value of type null in /wiki/admin/module/user_users.php on line 687 PHP Warning: Undefined variable $user in /wiki/admin/module/user_users.php on line 702 PHP Warning: Trying to access array offset on value of type null in /wiki/admin/module/user_users.php on line 702[...] %% The registration email however is sent to the user. I am using MariaDB. <[Can you register a new user via the registration action?]> Actually yes, that worked, thanks for the hint. The user appears in the table. <[[2] Upgrade to the latest version (6.1.29 → 6.2.1)]> I would love to upgrade, in fact, I did. But this did not solve the problem. Also in fresh installation of 6.1.29 obviously user creation from the admin panel works fine, but after importing the backup the error happens again. So the error only seems to be in the admin panel "Users" page, not in the ??registration?? action