Fatal error: Uncaught Error: Call to a member function getData() on null in /var/www/project/src/Controller/GroupOfferController.php:40 Stack trace: #0 /var/www/project/vendor/symfony/http-kernel/HttpKernel.php(163): App\Controller\GroupOfferController->validationFormulaire(Object(Symfony\Component\HttpFoundation\Request), Object(App\Repository\PageRepository), Object(App\Repository\ProductRepository), Object(Symfony\Component\Security\Csrf\CsrfTokenManager), Object(App\Repository\GroupOfferRepository), Object(App\Notification\GroupeNotification), NULL) #1 /var/www/project/vendor/symfony/http-kernel/HttpKernel.php(75): Symfony\Component\HttpKernel\HttpKernel->handleRaw(Object(Symfony\Component\HttpFoundation\Request), 1) #2 /var/www/project/vendor/symfony/http-kernel/Kernel.php(202): Symfony\Component\HttpKernel\HttpKernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #3 /var/www/project/public/index.php(28): Symfony\Component\HttpKernel\Kernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #4 {main} thrown in /var/www/project/src/Controller/GroupOfferController.php on line 40