Seems like a dangeros process updating maps on Garmin website.
Looks like the Map was partially updated but garmin failed to send the GMA file and GMA information to the unit.
I would try to do the update again but first clean out all unnecessary files from the unit. (to maximise free space)
Us non North-Americans oftem have problems with Internet Outages in the middle of something.

Boa Sorte Amigo

Good Luck Friend