Fatal error: Uncaught Error: Class "Doctrine\Persistence\Mapping\Driver\AnnotationDriver" not found in /users/energydata/www/volkszaehler.org/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/Driver/AttributeDriver.php:28 Stack trace: #0 {main} thrown in /users/energydata/www/volkszaehler.org/vendor/doctrine/orm/lib/Doctrine/ORM/Mapping/Driver/AttributeDriver.php on line 28