Earning Coins

So when I try to earn coins(with the tasks for when you wait) it sometimes doesnt work. But if it does, it wont let me go over the first option. I want to choose the 8 hour option, but it never works. I had the same problem with another device, so Im pretty disappointed. And Ive been playing this game for years, so please fix this. Its quite irritating.

Yzhuo about Home Design Story, v1.0.8