Fun But VERY Glitchy

I love this game, but whenever I try to go on to it, it is just a black screen. Then, I delete it then get it again. I play the game, then I go onto another game. I come back and its a black screen. Also, the character costs are very weird. Some cost 5,000 others cost 9,000. Whats the difference?

Cheese cheese everywhere about Endless Sky