Fatal error: Uncaught Error: Class "Symfony\Bundle\SecurityBundle\Security\FirewallContext" not found in /var/www/html/API_Forum/vendor/symfony/security-bundle/Security/LazyFirewallContext.php:26 Stack trace: #0 {main} thrown in /var/www/html/API_Forum/vendor/symfony/security-bundle/Security/LazyFirewallContext.php on line 26