Fatal error: Uncaught exception 'InvalidArgumentException' with message 'Entity has to be managed or scheduled for removal for single computation Shopware\Models\Tracking\Banner@000000003252b73900007f0fc349c43b' in /var/www/sz-einkaufswelt.de/httpdocs/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php:475 Stack trace: #0 /var/www/sz-einkaufswelt.de/httpdocs/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php(342): Doctrine\ORM\UnitOfWork->computeSingleEntityChangeSet(Object(Shopware\Models\Tracking\Banner)) #1 /var/www/sz-einkaufswelt.de/httpdocs/vendor/doctrine/orm/lib/Doctrine/ORM/EntityManager.php(356): Doctrine\ORM\UnitOfWork->commit(Object(Shopware\Models\Tracking\Banner)) #2 /var/www/sz-einkaufswelt.de/httpdocs/engine/Shopware/Controllers/Frontend/Tracking.php(76): Doctrine\ORM\EntityManager->flush(Object(Shopware\Models\Tracking\Banner)) #3 /var/www/sz-einkaufswelt.de/httpdocs/engine/Library/Enlight/Controller/Action.php(159): Shopware_Controllers_Frontend_Tracking->countBannerClickAction() #4 /var/www/sz-einkaufs in /var/www/sz-einkaufswelt.de/httpdocs/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php on line 475