[phpBB Debug] PHP Warning: in file [ROOT]/viewtopic.php on line 23: include(): Failed opening './includes/functions_user.php' for inclusion (include_path='.:/opt/alt/php82/usr/share/pear:/opt/alt/php82/usr/share/php:/usr/share/pear:/usr/share/php')

Fatal error: Uncaught Error: Call to undefined function phpbb_get_banned_user_ids() in /home/G/geobergenno/subdomener/forum/viewtopic.php:1683 Stack trace: #0 {main} thrown in /home/G/geobergenno/subdomener/forum/viewtopic.php on line 1683