Well, I think it didn't crashed, they're just under maintenance which could mean they were just upgrading some basic stuff or some technical stuff not worth to be shared, like fixing some bugs, upgrading the codes to avoid cheaters and crashes and etc. This is still a very new game and the staff responsible for it is clearly small, that's why we see a lot of small bugs and wrong things, and I think that's why servers are constantly under maintenance. Well, if they do are improving stuff, then I'm happy, bc with time we'll get rid of the annoying bugs. Plus, if they put the servers down for too much time and feel bad about it, they give us a shit load of crowns, which is nice haha.