Beim Klick auf “Warenkorb bearbeiten” erscheint folgende Fehlermeldung:
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" Fatal error : Uncaught TypeError: Return value of Shopware_Controllers_Frontend_Checkout::isShippingAllowed() must be of the type bool, null returned in /var/www/clients/client1/web2/web/engine/Shopware/Controllers/Frontend/Checkout.php:2192 Stack trace: #0 /var/www/clients/client1/web2/web/engine/Shopware/Controllers/Frontend/Checkout.php(180): Shopware_Controllers_Frontend_Checkout->isShippingAllowed() #1 /var/www/clients/client1/web2/web/engine/Library/Enlight/Controller/Action.php(192): Shopware_Controllers_Frontend_Checkout->cartAction() #2 /var/www/clients/client1/web2/web/engine/Library/Enlight/Controller/Dispatcher/Default.php(478): Enlight_Controller_Action->dispatch() #3 /var/www/clients/client1/web2/web/engine/Library/Enlight/Controller/Front.php(228): Enlight_Controller_Dispatcher_Default->dispatch() #4 /var/www/clients/client1/web2/web/engine/Shopware/Kernel.php(188): Enlight_Controller_Front->dispatch() #5 /var/www/clients/client1/web2/web/vendor/symfony/http-kernel/HttpCache/SubRequestHandler.php(102): Shopw in /var/www/clients/client1/web2/web/engine/Shopware/Controllers/Frontend/Checkout.php on line 2192"
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PlugIn-Sicherheitsmodus schafft keine Abhilfe.
Wie kann man das reparieren?