Fatal error: Uncaught Error: Class "Symfony\Component\HttpFoundation\Exception\SignedUriException" not found in /var/www/html/dev.hallescherfc.de/vendor/symfony/http-foundation/Exception/UnsignedUriException.php:17 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/symfony/http-foundation/Exception/UnsignedUriException.php on line 17