As far as I am aware it is per user not per program. During beta testing of the geocoding feature I'm quite sure that between Tim, Martin, John & Myself we hit way more than the limit per day combined. So if it had been all FT Analyzer users combined I'm sure we'd have noticed.
I suspect it was just a temporary error. As Tim hinted at error 500 means a server error this is different from being over the limit it means something went wrong at the server end when it was trying to construct a reply. After a while it will just give up as you noted. Then as Tim says waiting and trying another day usually means they have fixed the problem and it will just work.
I suspect it was just a temporary error. As Tim hinted at error 500 means a server error this is different from being over the limit it means something went wrong at the server end when it was trying to construct a reply. After a while it will just give up as you noted. Then as Tim says waiting and trying another day usually means they have fixed the problem and it will just work.