You might see this error during an Office update if you have a poor internet connection. Here are some things you can try to fix the problem.
Restart and update Office
Save your work, close any programs you have open, and then restart your computer.
Open any Office application such as Word or Excel, and then open an existing document or create a new one.
Select File > Account (or Office Account if you're using Outlook).
Under Product Information, select Update Options > Update Now.
Use a wired connection
If you aren’t already using a wired connection to the Internet, plug in your device and follow the steps above to update Office.