Fatal error: Uncaught Error: Interface "Symfony\Component\Cache\Adapter\AdapterInterface" not found in /var/www/html/dev.hallescherfc.de/vendor/symfony/cache/Adapter/NullAdapter.php:22 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/vendor/symfony/cache/Adapter/NullAdapter.php on line 22