I have the same problem and cross posted at https://talk.maemo.org/showthread.ph...48#post1545548

It looks like the phone tried to download a new map catalogue and failed. My guess is that the URL changed, or the server is offline. I have been having this issue for about a week now.

Restoring an old catalogue will again give you the old list of maps, but downloading does not work for me, again presumably because the server is offline.