Fatal error: Uncaught TypeError: TspoMarkups\Components\MarkupToHtmlConverter::convert(): Argument #1 ($htmlWithMarkups) must be of type string, null given, called in /var/www/custom/project/TspoShoppingWorlds/Subscriber/Frontend/CategorySubscriber.php on line 168 and defined in /var/www/custom/project/TspoMarkups/Components/MarkupToHtmlConverter.php:61 Stack trace: #0 /var/www/custom/project/TspoShoppingWorlds/Subscriber/Frontend/CategorySubscriber.php(168): TspoMarkups\Components\MarkupToHtmlConverter->convert(NULL, 'from', 600, NULL, 'upper') #1 /var/www/custom/project/TspoShoppingWorlds/Subscriber/Frontend/CategorySubscriber.php(152): TspoShoppingWorlds\Subscriber\Frontend\CategorySubscriber->convertMarkups(Array, 600) #2 /var/www/custom/project/TspoShoppingWorlds/Subscriber/Frontend/CategorySubscriber.php(104): TspoShoppingWorlds\Subscriber\Frontend\CategorySubscriber->getCategoryShoppingWorld(600, 'https://sportfi...', Object(Shopware\Bundle\StoreFrontBundle\Struct\Product\Manufacturer), Array) #3 /var/www/vendor/shopware/shopware/engine/Library/Enlight/Event/Handler/Default.php(90): TspoShoppingWorlds\Subscriber\Frontend\CategorySubscriber->onListingPage(Object(Enlight_Controller_ActionEventArgs)) #4 /var/www/vendor/shopware/shopware/engine/Library/Enlight/Event/EventManager.php(207): Enlight_Event_Handler_Default->execute(Object(Enlight_Controller_ActionEventArgs)) #5 /var/www/vendor/shopware/shopware/engine/Library/Enlight/Controller/Action.php(202): Enlight_Event_EventManager->notify('Enlight_Control...', Object(Enlight_Controller_ActionEventArgs)) #6 /var/www/vendor/shopware/shopware/engine/Library/Enlight/Controller/Dispatcher/Default.php(467): Enlight_Controller_Action->dispatch('indexAction') #7 /var/www/vendor/shopware/shopware/engine/Library/Enlight/Controller/Front.php(226): Enlight_Controller_Dispatcher_Default->dispatch(Object(Enlight_Controller_Request_RequestHttp), Object(Enlight_Controller_Response_ResponseHttp)) #8 /var/www/vendor/shopware/shopware/engine/Shopware/Kernel.php(195): Enlight_Controller_Front->dispatch() #9 /var/www/shopware.php(20): Shopware\Kernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #10 {main} thrown in /var/www/custom/project/TspoMarkups/Components/MarkupToHtmlConverter.php on line 61