Fatal error: Uncaught Error: Class "MediaWiki\Notification\Middleware\FilterMiddleware" not found in /home/floten1/q.tenbergen.ca/extensions/Echo/includes/Notifications/RecentChangeNotificationMiddleware.php:11 Stack trace: #0 {main} thrown in /home/floten1/q.tenbergen.ca/extensions/Echo/includes/Notifications/RecentChangeNotificationMiddleware.php on line 11