Fatal error: Uncaught Error: Class "Magento\Framework\Api\AbstractSimpleObject" not found in /var/www/magento/html/generated/code/Magento/MediaGalleryApi/Api/Data/KeywordExtension.php:7 Stack trace: #0 {main} thrown in /var/www/magento/html/generated/code/Magento/MediaGalleryApi/Api/Data/KeywordExtension.php on line 7