Saurabh Gupta

When admin click content ->mageplaza blog->category getting error

5

Fatal error: Uncaught Error: Call to a member function getId() on null in /var/www/html/demo30.laraveldevloper.in/vendor/magento/framework/Data/Tree/Dbp.php:380 Stack trace: #0 /var/www/html/demo30.laraveldevloper.in/vendor/magento/module-catalog/Block/Adminhtml/Category/AbstractCategory.php(157): Magento\Framework\Data\Tree\Dbp->loadEnsuredNodes(Object(Mageplaza\Blog\Model\Category), NULL) #1 /var/www/html/demo30.laraveldevloper.in/vendor/magento/module-catalog/view/adminhtml/templates/catalog/category/tree.phtml(11): Magento\Catalog\Block\Adminhtml\Category\AbstractCategory->getRoot() #2 /var/www/html/demo30.laraveldevloper.in/vendor/magento/framework/View/TemplateEngine/Php.php(59): include('/var/www/html/d...') #3 /var/www/html/demo30.laraveldevloper.in/vendor/magento/framework/View/Element/Template.php(271): Magento\Framework\View\TemplateEngine\Php->render(Object(Mageplaza\Blog\Block\Adminhtml\Category\Tree), '/var/www/html/d...',...