I deleted the game and re-downloaded it.

It said loading new data and got to 100% .... sat there then crashed.
I loaded a second time and it said "Connecting to server..." for about a minute (maybe more) then I started to hear the music for about another minute then it loaded.

I got to see all of my raided buildings that I hadn't been able to cash for a while.

It looks like it's working... Remains to be seen for how long.