"An error occurred when attempting to use the City Navigator North America NT 2023 Map Product".

 (v 4.7.4) with Express v 6.30. Was working ok. Then I began getting "An error occurred when attempting to use the City Navigator North America NT 2023 Map Product". I've tried disconnecting my Zumo XT and reloading software a few times. Any directions to head? Also I can't seem to find any method to load that map into the Win Basecamp. I'm software saavy and been through about every possible tab and menu.