Try reinstalling the game. If it was a game wide issue, everyone would be having the same issues.
Have you built one of the mega bases that causes the game to crash?
Are you on a decent network connection?
Are on single player mode? Did your save get corrupted?
Lots of things to consider before saying the game doesn’t work. Sure there are some issues and some major annoyances to be fixed, but the game is certainly not in an unplayable state.