Well, it looks like it's a problem with the app. I have the same problem. You can download the game directly through the game page on your internet browser, though.
Thank you. Disappointing that the app screws this up, but, least there is another way around.
The game has been updated and is now tested and functional on the app! :) Thank you for your patience, and enjoy!
Oh, nice! Thank you for figuring this out! I can only imagine what the issue was