Fatal error: Uncaught Error: Class "ilSurveyException" not found in /var/www/html/ilias/components/ILIAS/Survey/Execution/class.ilWrongSurveyCodeException.php:24 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Survey/Execution/class.ilWrongSurveyCodeException.php on line 24