Fatal error: Uncaught Error: Class "humhub\components\rendering\MailRenderer" not found in /users/quirl/www/filemanager/spark/protected/humhub/modules/notification/renderer/MailRenderer.php:29 Stack trace: #0 {main} thrown in /users/quirl/www/filemanager/spark/protected/humhub/modules/notification/renderer/MailRenderer.php on line 29