Fatal error: Uncaught Error: Class "yii\queue\sync\Queue" not found in /users/quirl/www/filemanager/spark/protected/humhub/modules/queue/driver/Sync.php:19 Stack trace: #0 {main} thrown in /users/quirl/www/filemanager/spark/protected/humhub/modules/queue/driver/Sync.php on line 19