Problem bei Versandart "Selbstabholung"

Hallo, ich habe für SW5.4 gemäß Dokumentation die Versandart “Selbstabholung” angelegt, erhalte aber beim Selbsttest folgende Fehlermeldung:

Fatal error : Uncaught Shopware\Components\CSRFTokenValidationException: The provided X-CSRF-Token for path “/checkout/saveShippingPayment/sTarget/checkout/sTargetAction/index” is invalid. Please go back, reload the page and try again. in /var/www/clients/client1/web2/web/engine/Shopware/Components/CSRFTokenValidator.php:149 Stack trace: #0 /var/www/clients/client1/web2/web/engine/Library/Enlight/Event/Handler/Default.php(91): Shopware\Components\CSRFTokenValidator->checkFrontendTokenValidation(Object(Enlight_Controller_ActionEventArgs)) #1 /var/www/clients/client1/web2/web/engine/Library/Enlight/Event/EventManager.php(220): Enlight_Event_Handler_Default->execute(Object(Enlight_Controller_ActionEventArgs)) #2 /var/www/clients/client1/web2/web/engine/Library/Enlight/Controller/Action.php(176): Enlight_Event_EventManager->notify(‘Enlight_Control…’, Object(Enlight_Controller_ActionEventArgs)) #3 /var/www/clients/client1/web2/web/engine/Library/Enlight/Controller/Dispatcher/Default.php(549): Enlight_Controller_Action->dispat in  /var/www/clients/client1/web2/web/engine/Shopware/Components/CSRFTokenValidator.php  on line  149

Woran kann das liegen?