Fehler ratenkauf by easyCredit

Nachdem Update auf 5.7.13 haben wir ein Problem mit easyCredit, sobald jemand auf Kasse drückt, kommt der Fehler, hat jemand eine Idee dazu?

Fatal error: Uncaught Error: Typed property Shopware_Controllers_Frontend_Checkout::$taxAggregator must not be accessed before initialization in engine/Shopware/Controllers/Frontend/Checkout.php:1244 Stack trace: #0 engine/Shopware/Controllers/Frontend/Checkout.php(1203): Shopware_Controllers_Frontend_Checkout->getTaxRates() #1 engine/Shopware/Plugins/Community/Frontend/NetzkollektivEasyCredit/Api/Quote.php(62): Shopware_Controllers_Frontend_Checkout->getBasket() #2 engine/Shopware/Plugins/Community/Frontend/NetzkollektivEasyCredit/vendor/ratenkaufbyeasycredit/php-sdk/src/Checkout.php(207): Shopware\Plugins\NetzkollektivEasyCredit\Api\Quote->getGrandTotal() #3 engine/Shopware/Plugins/Community/Frontend/NetzkollektivEasyCredit/Subscriber/Frontend.php(317): Netzkollektiv\EasyCreditApi\Checkout->isAvailable() #4 engine/Shopware/Plugins/Community/Frontend/NetzkollektivEasyCredit/Subscriber/Frontend.php(254): Shopware\Plugins\NetzkollektivEasyCredit\Subscriber\Frontend->_extendPaymentTemplate() #5 engine/Library/Enlight/Event/Handler/Default.php(90): Shopware\Plugins\NetzkollektivEasyCredit\Subscriber\Frontend->onFrontendCheckoutPostDispatch() #6 engine/Library/Enlight/Event/EventManager.php(207): Enlight_Event_Handler_Default->execute() #7 engine/Library/Enlight/Controller/Action.php(201): Enlight_Event_EventManager->notify() #8 engine/Library/Enlight/Controller/Dispatcher/Default.php(467): Enlight_Controller_Action->dispatch() #9 engine/Library/Enlight/Controller/Front.php(225): Enlight_Controller_Dispatcher_Default->dispatch() #10 engine/Shopware/Kernel.php(197): Enlight_Controller_Front->dispatch() #11 vendor/symfony/http-kernel/HttpCache/SubRequestHandler.php(85): Shopware\Kernel->handle() #12 vendor/symfony/http-kernel/HttpCache/HttpCache.php(479): Symfony\Component\HttpKernel\HttpCache\SubRequestHandler::handle() #13 engine/Shopware/Components/HttpCache/AppCache.php(266): Symfony\Component\HttpKernel\HttpCache\HttpCache->forward() #14 vendor/symfony/http-kernel/HttpCache/HttpCache.php(452): Shopware\Components\HttpCache\AppCache->forward() #15 vendor/symfony/http-kernel/HttpCache/HttpCache.php(346): Symfony\Component\HttpKernel\HttpCache\HttpCache->fetch() #16 engine/Shopware/Components/HttpCache/AppCache.php(192): Symfony\Component\HttpKernel\HttpCache\HttpCache->lookup() #17 vendor/symfony/http-kernel/HttpCache/HttpCache.php(224): Shopware\Components\HttpCache\AppCache->lookup() #18 engine/Shopware/Components/HttpCache/AppCache.php(117): Symfony\Component\HttpKernel\HttpCache\HttpCache->handle() #19 shopware.php(122): Shopware\Components\HttpCache\AppCache->handle() #20 {main} thrown in engine/Shopware/Controllers/Frontend/Checkout.php on line 1244

Problem scheint gelöst, nach der Deinstallation, und erneutem installieren, kam auf einmal ein Update auf die Version 1.8.4, damit lief es wieder, allerdings ist die neueste Version 1.8.7, die vorher drauf war