Expected header drawing

Good Morning,
We were running Aspose Word on one of our documents, using its MailMerge functionality to replace values within the document. However, we received the following error:
"Expected header drawing, but got something else. Please report this file to word@aspose.com."
I have attached the file to this email. Your help would be greatly appreciated.
Thank you.

I’m able to open this document in Aspose.Word no problem.

Please make sure you use the latest version of Aspose.Word. If that does not help, let me know exactly what steps do you go through to get the exception thrown.