Fatal error: Uncaught Error: Class "MediaWiki\User\ActorMigrationBase" not found in /home/hiphopdi/public_html/wiki2/extensions/AbuseFilter/includes/AbuseFilterActorMigration.php:11 Stack trace: #0 {main} thrown in /home/hiphopdi/public_html/wiki2/extensions/AbuseFilter/includes/AbuseFilterActorMigration.php on line 11