This article explains how to resolve the issue when web orders XML file failed to import with Alert message
"The operation could not be completed because the script engine has not been initialized to a valid language".
This issue is due to the too-long shipping address.
Shipping address cannot exceed 50 characters for a successful import.
Go to the Modified XML file folder
Open rejected XML file in Edit mode
Reduce shipping address to or below 50 characters
Place XML file from Modified to Orderq folder
The XML file will be imported based on the next import schedule etc., 5, 10, 15, 30 minutes.