Fatal error: Uncaught Error: Class "Magento\Framework\Model\ResourceModel\Db\AbstractDb" not found in /home/www/staging1.gamanorteweb.com/app/code/Sm/MegaMenu/Model/ResourceModel/MenuItems.php:15 Stack trace: #0 {main} thrown in /home/www/staging1.gamanorteweb.com/app/code/Sm/MegaMenu/Model/ResourceModel/MenuItems.php on line 15