Fatal error: Uncaught Error: Class "MediaWiki\Extension\AbuseFilter\Filter\AbstractFilter" not found in /usr/www/otte/public/sphunt1/extensions/AbuseFilter/includes/Filter/Filter.php:11 Stack trace: #0 {main} thrown in /usr/www/otte/public/sphunt1/extensions/AbuseFilter/includes/Filter/Filter.php on line 11