We commonly see this error from users who have recently upgraded their version of Microsoft Office. Typically, these errors are 5677 and 5890 and appear in new versions of MS Word since 2013. 

Steps to resolve the auto launch errors:
  1. Open MS Word.
  2. Click on File > Options.
  3. In the General section under Start up options, uncheck the "Open e-mail attachments and other uneditable files in reading view" box.
  4. Close Word and try to export and auto launch your document again. It may take a couple of tried for Word to realize the setting has been changed.