Fatal error: Uncaught Error: Class 'Sly\NotificationPusher\Collection\AbstractCollection' not found in /home/app/htdocs/ninja/vendor/sly/notification-pusher/src/Sly/NotificationPusher/Collection/DeviceCollection.php:23 Stack trace: #0 {main} thrown in /home/app/htdocs/ninja/vendor/sly/notification-pusher/src/Sly/NotificationPusher/Collection/DeviceCollection.php on line 23