Fatal error: Uncaught Error: Interface "NotificationCenter\Queue\QueueManagerInterface" not found in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/terminal42/notification_center/library/NotificationCenter/Queue/QueueManager.php:22 Stack trace: #0 {main} thrown in /home/rankting/public_html/ALT/ranketing.de (contao)/vendor/terminal42/notification_center/library/NotificationCenter/Queue/QueueManager.php on line 22