Fatal error: Uncaught Error: Class "Magento\Eav\Model\Entity\Attribute\Source\AbstractSource" not found in /var/www/magento/html/app/code/Aheadworks/Blog/Model/Source/Authors.php:29 Stack trace: #0 {main} thrown in /var/www/magento/html/app/code/Aheadworks/Blog/Model/Source/Authors.php on line 29