Fatal error: Uncaught Error: Class "MediaWiki\Extension\AbuseFilter\Filter\AbstractFilter" not found in /var/www/html/orian-wiki/extensions/AbuseFilter/includes/Filter/Filter.php:9 Stack trace: #0 {main} thrown in /var/www/html/orian-wiki/extensions/AbuseFilter/includes/Filter/Filter.php on line 9