Fatal error: Uncaught Error: Call to a member function getItemById() on null in /var/www/html/app/code/TemplateMonster/ProductLabels/view/frontend/templates/catalog-labels.phtml:20 Stack trace: #0 /var/www/html/vendor/magento/framework/View/TemplateEngine/Php.php(59): include() #1 /var/www/html/vendor/magento/framework/View/Element/Template.php(255): Magento\Framework\View\TemplateEngine\Php->render(Object(Magento\Framework\View\Element\Template), '/var/www/html/a...', Array) #2 /var/www/html/vendor/magento/framework/View/Element/Template.php(279): Magento\Framework\View\Element\Template->fetchView('/var/www/html/a...') #3 /var/www/html/vendor/magento/framework/View/Element/AbstractBlock.php(659): Magento\Framework\View\Element\Template->_toHtml() #4 /var/www/html/app/design/frontend/TemplateMonster/stormage/Magento_Catalog/templates/product/list.phtml(75): Magento\Framework\View\Element\AbstractBlock->toHtml() #5 /var/www/html/vendor/magento/framework/View/TemplateEngine/Php.php(59): include('/var/www/html/a...') #6 /var in /var/www/html/app/code/TemplateMonster/ProductLabels/view/frontend/templates/catalog-labels.phtml on line 20