Fatal error: Uncaught Error: Interface "Symfony\Component\HttpFoundation\Session\SessionBagInterface" not found in /Users/m4_production_1/Sites/ipt/iptkids/vendor/symfony/http-foundation/Session/Flash/FlashBagInterface.php:21 Stack trace: #0 {main} thrown in /Users/m4_production_1/Sites/ipt/iptkids/vendor/symfony/http-foundation/Session/Flash/FlashBagInterface.php on line 21