Fatal error: Uncaught Error: Class "Magento\AdvancedCheckout\Controller\Sku\UploadFile" not found in /var/www/magento/html/generated/code/Magento/AdvancedCheckout/Controller/Sku/UploadFile/Interceptor.php:7 Stack trace: #0 {main} thrown in /var/www/magento/html/generated/code/Magento/AdvancedCheckout/Controller/Sku/UploadFile/Interceptor.php on line 7