Fatal error: Uncaught Error: Call to a member function hasChildren() on null in /home/shopm2.bombingscience.com/magento_root/vendor/magento/module-catalog/Model/Category/Tree.php:172 Stack trace: #0 /home/shopm2.bombingscience.com/magento_root/vendor/magento/module-catalog/Model/Category/Tree.php(148): Magento\Catalog\Model\Category\Tree->getChildren(NULL, NULL, 0) #1 /home/shopm2.bombingscience.com/magento_root/vendor/magento/module-catalog/Model/CategoryManagement.php(68): Magento\Catalog\Model\Category\Tree->getTree(NULL, NULL) #2 /home/shopm2.bombingscience.com/magento_root/app/design/frontend/Bombingscience/default/Magento_Catalog/templates/navigation/categories.phtml(10): Magento\Catalog\Model\CategoryManagement->getTree() #3 /home/shopm2.bombingscience.com/magento_root/vendor/magento/framework/View/TemplateEngine/Php.php(59): include('/home/shopm2.bo...') #4 /home/shopm2.bombingscience.com/magento_root/vendor/magento/framework/Interception/Interceptor.php(58): Magento\Framework\View\TemplateEngine\Php->render(Objec in /home/shopm2.bombingscience.com/magento_root/vendor/magento/module-catalog/Model/Category/Tree.php on line 172