Fatal error: Uncaught Error: Class "MediaWiki\Auth\AbstractPreAuthenticationProvider" not found in /usr/www/otte/public/sphunt1/extensions/AbuseFilter/includes/AbuseFilterPreAuthenticationProvider.php:18 Stack trace: #0 {main} thrown in /usr/www/otte/public/sphunt1/extensions/AbuseFilter/includes/AbuseFilterPreAuthenticationProvider.php on line 18