Fatal error: Uncaught Error: Class 'Doctrine\Common\EventManager' not found in /home/soh-works/www/3good_old/vendor/symfony/doctrine-bridge/ContainerAwareEventManager.php:23 Stack trace: #0 {main} thrown in /home/soh-works/www/3good_old/vendor/symfony/doctrine-bridge/ContainerAwareEventManager.php on line 23