There is no option to back out of this except to start. If you don't want to start, you have to exit the game, there is no other way. It keeps coming up many times after restarting the game.That's why you can't move forward in the game. Which is very annoying.
So, there should be a cancel option in it. So that if you don't want to participate at that moment, you can back out without leaving the game. And it would be better if it doesn't show up in the game again and again.
