EPIX Pro (Gen 2) Sapphire - "Cannot unlock maps" error (or msg) - Why

EPIX Pro (Gen 2) Sapphire - "Cannot unlock maps" error (or msg) - Why

I haven't loaded any maps unless they were automatically updated. But I'm seeing what looks like an error.  When I power off, then power on, I get a message that says, "Cannot unlock maps" and a checkbox to click with START.  No indication what the problem is.  Maps seem to work ok.

I did see a map (Outdoor maps+) that does need a subscription but that's also on my Fenix 7x PRO, and it doesn't show the warning/error.  And I have the same maps listed in the Map Manager for both my Epix Pro and my Fenix 7x Pro Sapphire Solar. So, I don't think that is the problem.

1) Why am I seeing this warning?

2) Is it really an error, or just a warning about something?

3) How do I know which map is causing it?

4) How do I fix it?

Thanks

Mike