Fatal error: Uncaught Error: Interface "Symfony\Component\HttpFoundation\Session\Attribute\AttributeBagInterface" not found in /home/.sites/site4/wwwroot/web/4.0/ui/vendor/symfony/http-foundation/Session/Attribute/AttributeBag.php:19 Stack trace: #0 {main} thrown in /home/.sites/site4/wwwroot/web/4.0/ui/vendor/symfony/http-foundation/Session/Attribute/AttributeBag.php on line 19