Fatal error: Uncaught Error: Call to a member function getId() on null in /home/m2/public_html/app/code/MageArray/SubcategoriesGridList/Helper/Data.php:222 Stack trace: #0 /home/m2/public_html/app/code/MageArray/SubcategoriesGridList/view/frontend/templates/category/subcategory.phtml(5): MageArray\SubcategoriesGridList\Helper\Data->getSubCategories(NULL) #1 /home/m2/public_html/vendor/magento/framework/View/TemplateEngine/Php.php(59): include('/home/m2/public...') #2 /home/m2/public_html/vendor/magento/framework/View/Element/Template.php(271): Magento\Framework\View\TemplateEngine\Php->render(Object(Smartwave\Dailydeals\Block\Main\Interceptor), '/home/m2/public...', Array) #3 /home/m2/public_html/generated/code/Smartwave/Dailydeals/Block/Main/Interceptor.php(609): Magento\Framework\View\Element\Template->fetchView('/home/m2/public...') #4 /home/m2/public_html/vendor/magento/framework/View/Element/Template.php(301): Smartwave\Dailydeals\Block\Main\Interceptor->fetchView('/home/m2/public...') #5 /home/m2/public_html/vendor/ in /home/m2/public_html/app/code/MageArray/SubcategoriesGridList/Helper/Data.php on line 222