Fatal error: Uncaught Error: Call to a member function getSku() on null in /var/www/html/app/code/Magento/Catalog/view/frontend/templates/product/view/details.phtml:23 Stack trace: #0 /var/www/html/lib/internal/Magento/Framework/View/TemplateEngine/Php.php(59): include() #1 /var/www/html/lib/internal/Magento/Framework/View/Element/Template.php(271): Magento\Framework\View\TemplateEngine\Php->render(Object(Magento\Catalog\Block\Product\View\Details), '/var/www/html/a...', Array) #2 /var/www/html/lib/internal/Magento/Framework/View/Element/Template.php(301): Magento\Framework\View\Element\Template->fetchView('/var/www/html/a...') #3 /var/www/html/lib/internal/Magento/Framework/View/Element/AbstractBlock.php(1097): Magento\Framework\View\Element\Template->_toHtml() #4 /var/www/html/lib/internal/Magento/Framework/View/Element/AbstractBlock.php(1101): Magento\Framework\View\Element\AbstractBlock->Magento\Framework\View\Element\{closure}() #5 /var/www/html/lib/internal/Magento/Framework/View/Element/AbstractBlock.php(671): Mage in /var/www/html/app/code/Magento/Catalog/view/frontend/templates/product/view/details.phtml on line 23