Fatal error: Uncaught Error: Class "humhub\modules\ui\filter\models\QueryFilter" not found in /users/quirl/www/filemanager/spark/protected/humhub/modules/stream/models/filters/StreamQueryFilter.php:19 Stack trace: #0 {main} thrown in /users/quirl/www/filemanager/spark/protected/humhub/modules/stream/models/filters/StreamQueryFilter.php on line 19