Fatal error: Uncaught InvalidArgumentException: Entity has to be managed or scheduled for removal for single computation Shopware\Models\Tracking\Banner@0000000040f0bb70000000004ad3acb8 in /home/itschweitzer/public_html/it-schweitzer.de/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php:475 Stack trace: #0 /home/itschweitzer/public_html/it-schweitzer.de/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php(342): Doctrine\ORM\UnitOfWork->computeSingleEntityChangeSet(Object(Shopware\Models\Tracking\Banner)) #1 /home/itschweitzer/public_html/it-schweitzer.de/vendor/doctrine/orm/lib/Doctrine/ORM/EntityManager.php(356): Doctrine\ORM\UnitOfWork->commit(Object(Shopware\Models\Tracking\Banner)) #2 /home/itschweitzer/public_html/it-schweitzer.de/engine/Shopware/Controllers/Frontend/Tracking.php(73): Doctrine\ORM\EntityManager->flush(Object(Shopware\Models\Tracking\Banner)) #3 /home/itschweitzer/public_html/it-schweitzer.de/engine/Library/Enlight/Controller/Action.php(192): Shopware_Controllers_Frontend_Tracking->countBannerClickAct in /home/itschweitzer/public_html/it-schweitzer.de/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php on line 475