Fatal error: Uncaught Error: Interface "Symfony\Component\HttpFoundation\Session\SessionBagInterface" not found in /home/zdpktgd/ptc/vendor.old/symfony/http-foundation/Session/SessionBagProxy.php:19 Stack trace: #0 {main} thrown in /home/zdpktgd/ptc/vendor.old/symfony/http-foundation/Session/SessionBagProxy.php on line 19