Fatal error: Uncaught Error: Class "ilAtomQueryBase" not found in /var/www/html/ilias/components/ILIAS/Database/classes/Atom/class.ilAtomQueryTransaction.php:28 Stack trace: #0 {main} thrown in /var/www/html/ilias/components/ILIAS/Database/classes/Atom/class.ilAtomQueryTransaction.php on line 28