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