Fatal error: Uncaught TypeError: Return value of Touratech\GdiInterface\Helper\Data::getAvailabilityMappedText() must be of the type string, object returned in /var/www/html/app/code/Touratech/GdiInterface/Helper/Data.php:742 Stack trace: #0 /var/www/html/app/design/frontend/Touratech/luma_child/Magento_Catalog/templates/product/view/type/default.phtml(7): Touratech\GdiInterface\Helper\Data->getAvailabilityMappedText(Object(Magento\Catalog\Model\Product\Interceptor)) #1 /var/www/html/vendor/magento/framework/View/TemplateEngine/Php.php(59): include('/var/www/html/a...') #2 /var/www/html/vendor/magento/framework/View/Element/Template.php(271): Magento\Framework\View\TemplateEngine\Php->render(Object(Magento\Catalog\Block\Product\View\Type\Simple\Interceptor), '/var/www/html/a...', Array) #3 /var/www/html/vendor/magento/framework/View/Element/Template.php(301): Magento\Framework\View\Element\Template->fetchView('/var/www/html/a...') #4 /var/www/html/vendor/magento/framework/View/Element/AbstractBlock.php(1100): Magento\Fram in /var/www/html/app/code/Touratech/GdiInterface/Helper/Data.php on line 742