Hey, did you get this resolved? If not, feel free to e-mail me directly for help.

This article shows how to do a "Repair of Word", that should help you out!

https://support.office.com/en-us/article/repair-an-office-application-7821d4b6-7c1d-4205-aa0e-a6b40c5bb88b?ui=en-US&rs=en-US&ad=US