Update auf 5.6 Fehler "500 -"

Im PHP (7.2) Error Log erscheint folgendes.

Beim Aufruf einer Kategorie:

[20-Aug-2019 05:29:33 Europe/Berlin] PHP Fatal error: Uncaught TypeError: Argum ent 4 passed to Shopware\Components\ManualSorting\ProductLoader::load() must be an instance of Shopware\Bundle\StoreFrontBundle\Struct\Search\CustomSorting, nul l given, called in /html/shopware/engine/Shopware/Controllers/Backend/ManualSort ing.php on line 42 and defined in /html/shopware/engine/Shopware/Components/Manu alSorting/ProductLoader.php:70
Stack trace:
#0 /html/shopware/engine/Shopware/Controllers/Backend/ManualSorting.php(42): Sho pware\Components\ManualSorting\ProductLoader->load(21, 0, 25, NULL)
#1 /html/shopware/engine/Library/Enlight/Controller/Action.php(192): Shopware\Co ntrollers\Backend\ManualSorting->listAction(0, 25, 21, 100)
#2 /html/shopware/engine/Library/Enlight/Controller/Dispatcher/Default.php(478): Enlight_Controller_Action->dispatch('listAction')
#3 /html/shopware/engine/Library/Enlight/Controller/Front.php(228): Enlight_Cont roller_Dispatcher_Default->dispatch(Object(Enlight_Controller_Request_RequestHtt p), Object(Enlight_Controller_Response_ResponseHttp))
#4 in /html/shopware/engine/Shopware/Components/ManualSorting/ProductLoader.php on line 70
[20-Aug-2019 05:29:33 Europe/Berlin] PHP Fatal error: Uncaught TypeError: Argum ent 4 passed to Shopware\Components\ManualSorting\ProductLoader::load() must be an instance of Shopware\Bundle\StoreFrontBundle\Struct\Search\CustomSorting, nul l given, called in /html/shopware/engine/Shopware/Controllers/Backend/ManualSort ing.php on line 42 and defined in /html/shopware/engine/Shopware/Components/Manu alSorting/ProductLoader.php:70
Stack trace:
#0 /html/shopware/engine/Shopware/Controllers/Backend/ManualSorting.php(42): Sho pware\Components\ManualSorting\ProductLoader->load(5, 0, 25, NULL)
#1 /html/shopware/engine/Library/Enlight/Controller/Action.php(192): Shopware\Co ntrollers\Backend\ManualSorting->listAction(0, 25, 5, 100)
#2 /html/shopware/engine/Library/Enlight/Controller/Dispatcher/Default.php(478): Enlight_Controller_Action->dispatch('listAction')
#3 /html/shopware/engine/Library/Enlight/Controller/Front.php(228): Enlight_Cont roller_Dispatcher_Default->dispatch(Object(Enlight_Controller_Request_RequestHtt p), Object(Enlight_Controller_Response_ResponseHttp))
#4 / in /html/shopware/engine/Shopware/Components/ManualSorting/ProductLoader.ph p on line 70

Beim Suchen nach einem Kunden:

[20-Aug-2019 05:30:16 Europe/Berlin] PHP Fatal error: Uncaught TypeError: Argument 1 passed to Shopware\Components\Translation\ObjectTranslator::translateObjectProperty() must be of the type array, null given, called in /html/shopware/engine/Shopware/Components/Translation.php on line 517 and defined in /html/shopware/engine/Shopware/Components/Translation/ObjectTranslator.php:74
Stack trace:
#0 /html/shopware/engine/Shopware/Components/Translation.php(517): Shopware\Components\Translation\ObjectTranslator->translateObjectProperty(NULL, 'description')
#1 [internal function]: Shopware_Components_Translation::{closure}(NULL)
#2 /html/shopware/engine/Shopware/Components/Translation.php(525): array_map(Object(Closure), Array)
#3 /html/shopware/engine/Shopware/Components/Translation.php(446): Shopware_Components_Translation->translatePaymentMethods(Array, NULL, NULL)
#4 /html/shopware/engine/Shopware/Controllers/Backend/Order.php(338): Shopware_Components_Translation->translateOrders(Array)
#5 /html/shopware/engine/Library/Enlight/Controller/Action.php(192): Shopware in /html/shopware/engine/Shopware/Components/Translation/ObjectTranslator.php on line 74

Dieht für mich jetzt nicht nach einem externen Plugin aus?