Fatal error: Uncaught Error: Interface "Doctrine\Persistence\Mapping\Driver\FileLocator" not found in /users/energydata/www/volkszaehler.org/vendor/doctrine/persistence/src/Persistence/Mapping/Driver/SymfonyFileLocator.php:30 Stack trace: #0 {main} thrown in /users/energydata/www/volkszaehler.org/vendor/doctrine/persistence/src/Persistence/Mapping/Driver/SymfonyFileLocator.php on line 30