Fatal error: Uncaught Error: Class "Symfony\Component\PropertyAccess\Exception\InvalidArgumentException" not found in /var/www/html/dev.hallescherfc.de/vendor/symfony/property-access/Exception/InvalidTypeException.php:19 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/symfony/property-access/Exception/InvalidTypeException.php on line 19