A family of Microsoft word processing software products for creating web, email, and print documents.
Hi
If your software is up to date the version would be 16.80 and your license type could be one of several different kinds, including Office 365 subscription or maybe volume license, or maybe Office 2019. You didn't say what it is so I have no idea what you have.
Knowing the storage location you're attempting to use would also be helpful to know. Can you open a new blank document and save it to your Mac? To OneDrive?