Fatal error: Uncaught Error: Class "Doctrine\Common\EventManager" not found in /opt/lampp/htdocs/myhospitalnow/suitecrm/vendor/symfony/doctrine-bridge/ContainerAwareEventManager.php:24 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/suitecrm/vendor/symfony/doctrine-bridge/ContainerAwareEventManager.php on line 24