Fatal error: Uncaught Error: Class "Aligent\CMSMegamenu\Block\Widget\Megamenu" not found in /var/www/magento/html/app/code/BBNT/CMSMegamenu/Block/Widget/Megamenu.php:23 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/BBNT/CMSMegamenu/Block/Widget/Megamenu.php on line 23