Fatal error: Uncaught Error: Class "Magento\Catalog\Model\ResourceModel\Product\Gallery" not found in /var/www/magento/html/generated/code/Magento/Catalog/Model/ResourceModel/Product/Gallery/Interceptor.php:7 Stack trace: #0 {main} thrown in /var/www/magento/html/generated/code/Magento/Catalog/Model/ResourceModel/Product/Gallery/Interceptor.php on line 7