If you see a "Sorry, the servers are under maintenance" message, it means that we are updating our game servers to provide you with the best gaming experience possible.
This does not usually take a long time, more often than not it will just be a few minutes, while occasionally it might be a couple of hours. After that, you will be able to continue playing as usual.
Please do not reinstall Rumble Stars if you see the maintenance alert, as it may result in losing your game progress.