Fatal error: Uncaught Error: Class "Doctrine\Persistence\Event\OnClearEventArgs" not found in /opt/lampp/htdocs/myhospitalnow/suitecrm/vendor/doctrine/orm/src/Event/OnClearEventArgs.php:18 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/suitecrm/vendor/doctrine/orm/src/Event/OnClearEventArgs.php on line 18