Nicht, dass ich mir aktuell Sorgen mache, aber jetzt habe ich auch mal einen Fehler im Log, mit dem ich so gar nichts anfangen kann.
Aber dennoch wäre es gut zu wissen, was das sein könnte 
[2017-03-14 00:17:24] core.ERROR: InvalidArgumentException: Entity has to be managed or scheduled for removal for single computation Shopware\Models\Tracking\Banner@000000003c9329d60000000077858c73 in /www/htdocs/###########/domains/###########/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php:475 Stack trace: #0 /www/htdocs/###########/domains/###########/vendor/doctrine/orm/lib/Doctrine/ORM/UnitOfWork.php(342): Doctrine\ORM\UnitOfWork->computeSingleEntityChangeSet(Object(Shopware\Models\Tracking\Banner)) #1 /www/htdocs/###########/domains/###########/vendor/doctrine/orm/lib/Doctrine/ORM/EntityManager.php(356): Doctrine\ORM\UnitOfWork->commit(Object(Shopware\Models\Tracking\Banner)) #2 /www/htdocs/###########/domains/###########/engine/Shopware/Controllers/Frontend/Tracking.php(76): Doctrine\ORM\EntityManager->flush(Object(Shopware\Models\Tracking\Banner)) #3 /www/htdocs/###########/domains/###########/engine/Library/Enlight/Controller/Action.php(159): Shopware_Controllers_Frontend_Tracking->countBannerClickAction() #4 /www/htdocs/###########/domains/###########/engine/Library/Enlight/Controller/Dispatcher/Default.php(523): Enlight_Controller_Action->dispatch('countBannerClic...') #5 /www/htdocs/###########/domains/###########/engine/Library/Enlight/Controller/Front.php(223): Enlight_Controller_Dispatcher_Default->dispatch(Object(Enlight_Controller_Request_RequestHttp), Object(Enlight_Controller_Response_ResponseHttp)) #6 /www/htdocs/###########/domains/###########/engine/Shopware/Kernel.php(180): Enlight_Controller_Front->dispatch() #7 /www/htdocs/###########/domains/###########/vendor/symfony/http-kernel/HttpCache/HttpCache.php(487): Shopware\Kernel->handle(Object(Enlight_Controller_Request_RequestHttp), 1, true) #8 /www/htdocs/###########/domains/###########/engine/Shopware/Components/HttpCache/AppCache.php(255): Symfony\Component\HttpKernel\HttpCache\HttpCache->forward(Object(Symfony\Component\HttpFoundation\Request), true, NULL) #9 /www/htdocs/###########/domains/###########/vendor/symfony/http-kernel/HttpCache/HttpCache.php(444): Shopware\Components\HttpCache\AppCache->forward(Object(Symfony\Component\HttpFoundation\Request), true) #10 /www/htdocs/###########/domains/###########/vendor/symfony/http-kernel/HttpCache/HttpCache.php(344): Symfony\Component\HttpKernel\HttpCache\HttpCache->fetch(Object(Symfony\Component\HttpFoundation\Request), true) #11 /www/htdocs/###########/domains/###########/engine/Shopware/Components/HttpCache/AppCache.php(178): Symfony\Component\HttpKernel\HttpCache\HttpCache->lookup(Object(Symfony\Component\HttpFoundation\Request), true) #12 /www/htdocs/###########/domains/###########/vendor/symfony/http-kernel/HttpCache/HttpCache.php(210): Shopware\Components\HttpCache\AppCache->lookup(Object(Symfony\Component\HttpFoundation\Request), true) #13 /www/htdocs/###########/domains/###########/engine/Shopware/Components/HttpCache/AppCache.php(114): Symfony\Component\HttpKernel\HttpCache\HttpCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #14 /www/htdocs/###########/domains/###########/shopware.php(117): Shopware\Components\HttpCache\AppCache->handle(Object(Symfony\Component\HttpFoundation\Request)) #15 {main} [] {"uid":"f220f57"}