Fatal error: Uncaught Error: Class "Aheadworks\Blog\Model\Source\Categories" not found in /var/www/magento/html/app/code/Aheadworks/Blog/Model/Source/Widget/Categories.php:26 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/Aheadworks/Blog/Model/Source/Widget/Categories.php on line 26