Fatal error: Uncaught Error: Class "MUTHSEV\Members\Domain\Model\Contact" not found in /var/www/html/dev.hallescherfc.de/packages/muthsevshop/Classes/Domain/Model/Customer.php:8 Stack trace: #0 {main} thrown in /var/www/html/dev.hallescherfc.de/packages/muthsevshop/Classes/Domain/Model/Customer.php on line 8