Fatal error: Uncaught Error: Interface "Symfony\Component\VarDumper\Dumper\DataDumperInterface" not found in /users/danielstruebig/www/familyhelper/vendor/symfony/var-dumper/Dumper/AbstractDumper.php:22 Stack trace: #0 {main} thrown in /users/danielstruebig/www/familyhelper/vendor/symfony/var-dumper/Dumper/AbstractDumper.php on line 22