Fatal error: Uncaught Error: Class "ilParticipants" not found in /var/www/html/ilias/components/ILIAS/Course/classes/class.ilCourseParticipants.php:24 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Course/classes/class.ilCourseParticipants.php on line 24