Fehlermeldung bei klick auf Warenkorb

Hallo, bekomme folgende Meldung bei klick auf Warenkarb. Ups! Ein Fehler ist aufgetreten! Die nachfolgenden Hinweise sollten Ihnen weiterhelfen. sValidateStep3 #02: Payment classes dir not loaded in engine/core/class/sSystem.php on line 175 Stack trace: #0 engine/core/class/sAdmin.php(479): sSystem->E_CORE_WARNING(‘sValidateStep3 …’, ‘Payment classes…’) #1 Shopware/Controllers/Frontend/Checkout.php(979): sAdmin->sInitiatePaymentClass(Array) #2 Shopware/Controllers/Frontend/Checkout.php(106): Shopware_Controllers_Frontend_Checkout->getSelectedPayment() #3 Enlight/Controller/Action.php(159): Shopware_Controllers_Frontend_Checkout->cartAction() #4 Enlight/Controller/Dispatcher/Default.php(528): Enlight_Controller_Action->dispatch(‘cartAction’) #5 Enlight/Controller/Front.php(228): Enlight_Controller_Dispatcher_Default->dispatch(Object(Enlight_Controller_Request_RequestHttp), Object(Enlight_Controller_Response_ResponseHttp)) #6 Shopware/Kernel.php(141): Enlight_Controller_Front->dispatch() #7 vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(473): Shopware\Kernel->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #8 Shopware/Components/HttpCache/AppCache.php(256): Symfony\Component\HttpKernel\HttpCache\HttpCache->forward(Object(Symfony\Component\HttpFoundation\Request), true, NULL) #9 vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(430): Shopware\Components\HttpCache\AppCache->forward(Object(Symfony\Component\HttpFoundation\Request), true) #10 vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(330): Symfony\Component\HttpKernel\HttpCache\HttpCache->fetch(Object(Symfony\Component\HttpFoundation\Request), true) #11 Shopware/Components/HttpCache/AppCache.php(178): Symfony\Component\HttpKernel\HttpCache\HttpCache->lookup(Object(Symfony\Component\HttpFoundation\Request), true) #12 vendor/symfony/http-kernel/Symfony/Component/HttpKernel/HttpCache/HttpCache.php(194): Shopware\Components\HttpCache\AppCache->lookup(Object(Symfony\Component\HttpFoundation\Request), true) #13 Shopware/Components/HttpCache/AppCache.php(113): Symfony\Component\HttpKernel\HttpCache\HttpCache->handle(Object(Symfony\Component\HttpFoundation\Request), 1, true) #14 shopware.php(91): Shopware\Components\HttpCache\AppCache->handle(Object(Symfony\Component\HttpFoundation\Request)) #15 {main}