If the Microsoft Store won't let you "get" an app, the actual issue might not be the exact error the store is displaying - the error message might be the "best match" the store software has available for whatever it thinks happened.
Errors from software do not always match the exact situation.
Error handling and the error messages are "pre-written" into the software.
Not helpful, I know - but software is not always supremely intelligent.
What to do?
What ever is going on,
If you know for a fact that you are connected to the Internet,
you'll have to try fixing the problem in the Store software.
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