Crashes with Game Center – Dragon Vita - Free Monster Breeding Game Review

Great game. Super cute, adorable, cuddly dragons. When you buy dragons, you can choose their gender. Awesome. But this game needs to be fixed. When I deal with Game Center part, where I can invite friends and send them challenges, the game crashes and that really ticks me off. ? Could you please fix that part?
Review by DDD84 on Dragon Vita - Free Monster Breeding Game.