Fatal error: Uncaught Error: Interface "ILIAS\FileUpload\FileUpload" not found in /var/www/html/ilias/components/ILIAS/FileUpload/src/FileUploadImpl.php:48 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/FileUpload/src/FileUploadImpl.php on line 48