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