Fatal error: Uncaught Error: Class "humhub\components\Widget" not found in /users/quirl/www/filemanager/spark/protected/runtime/module_backups/calendar_1736926948/widgets/ParticipantList.php:20 Stack trace: #0 {main} thrown in /users/quirl/www/filemanager/spark/protected/runtime/module_backups/calendar_1736926948/widgets/ParticipantList.php on line 20