Fatal error: Uncaught Error: Interface "Symfony\Component\HttpFoundation\Session\SessionInterface" not found in /home/lun45tyra31/public_html/demo/vendor/symfony/http-foundation/Session/FlashBagAwareSessionInterface.php:19 Stack trace: #0 {main} thrown in /home/lun45tyra31/public_html/demo/vendor/symfony/http-foundation/Session/FlashBagAwareSessionInterface.php on line 19