Fatal error: Uncaught Error: Interface "Symfony\Component\HttpFoundation\Session\FlashBagAwareSessionInterface" not found in /home/intentexperts/public_html/cs/install-dir/vendor/symfony/http-foundation/Session/Session.php:33 Stack trace: #0 {main} thrown in /home/intentexperts/public_html/cs/install-dir/vendor/symfony/http-foundation/Session/Session.php on line 33