Fatal error: Uncaught Error: Call to a member function getResource() on null in /home/baytech/webcnt/stagingdeltafand/public_html/app/code/Realwebroot/Customdata/view/frontend/templates/technologyproduct.phtml:20 Stack trace: #0 /home/baytech/webcnt/stagingdeltafand/public_html/vendor/magento/framework/View/TemplateEngine/Php.php(59): include() #1 /home/baytech/webcnt/stagingdeltafand/public_html/vendor/magento/framework/View/Element/Template.php(271): Magento\Framework\View\TemplateEngine\Php->render(Object(Realwebroot\Customdata\Block\Index\Subcategorylist), '/home/baytech/w...', Array) #2 /home/baytech/webcnt/stagingdeltafand/public_html/vendor/magento/framework/View/Element/Template.php(301): Magento\Framework\View\Element\Template->fetchView('/home/baytech/w...') #3 /home/baytech/webcnt/stagingdeltafand/public_html/vendor/magento/framework/View/Element/AbstractBlock.php(668): Magento\Framework\View\Element\Template->_toHtml() #4 /home/baytech/webcnt/stagingdeltafand/public_html/vendor/magento/module-email/Model/Templ in /home/baytech/webcnt/stagingdeltafand/public_html/app/code/Realwebroot/Customdata/view/frontend/templates/technologyproduct.phtml on line 20