Fatal error: Uncaught Error: Class "ilTestBaseTestCase" not found in /var/www/html/ilias/components/ILIAS/Test/tests/ilTestSkillLevelThresholdTest.php:25 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Test/tests/ilTestSkillLevelThresholdTest.php on line 25