Fatal error: Uncaught Error: Class 'Sly\NotificationPusher\Adapter\BaseAdapter' not found in /home/app/htdocs/ninja/vendor/sly/notification-pusher/src/Sly/NotificationPusher/Adapter/Gcm.php:34 Stack trace: #0 {main} thrown in /home/app/htdocs/ninja/vendor/sly/notification-pusher/src/Sly/NotificationPusher/Adapter/Gcm.php on line 34