Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\ParameterBag" not found in /home/backend/public_html/fm360/system/vendor/symfony/http-foundation/ServerBag.php:21 Stack trace: #0 {main} thrown in /home/backend/public_html/fm360/system/vendor/symfony/http-foundation/ServerBag.php on line 21