Fatal error: Uncaught Error: Class "MediaWiki\JobQueue\Job" not found in /home/floten1/q.tenbergen.ca/extensions/Echo/includes/Jobs/NotificationDeleteJob.php:23 Stack trace: #0 {main} thrown in /home/floten1/q.tenbergen.ca/extensions/Echo/includes/Jobs/NotificationDeleteJob.php on line 23