Fatal error: Uncaught Error: Class "Symfony\Component\HttpKernel\DependencyInjection\Extension" not found in /var/www/crm_killing_ninja/vendor/nelmio/cors-bundle/DependencyInjection/NelmioCorsExtension.php:22 Stack trace: #0 {main} thrown in /var/www/crm_killing_ninja/vendor/nelmio/cors-bundle/DependencyInjection/NelmioCorsExtension.php on line 22