I simply can't upgrade from 1.16.15 to 1.17.2
When I copy over all files and try to log in, I get the logon screen, but it does not accept any user. No LDAP, nor a local admin user. Therefore, I can't start the upgrade.
Server-Software Apache/2.4.54 (Debian)
MySQL-Version 10.5.18
PHP-Version 8.0.24 (Tried it with 8.1 as well)
Plugins: LDAP & HTTP Passthru Authentication
Apache error log is empty (I already enabled error reporting in bootstrap.php
Any idea?