Can't type answer – Blimp Code Review

The keypad is covered when I try to type in the numbers. I can only type numbers 1 - 6. The numbers 7 - 9 can't bee seen at all! The green check mark, the zero (0), and the red x can be seen but they do not register a touch. Turning my tablet in portrait mode does not fix the problem at all. I wish this would work because it seems liked it would be nice. This is the second update I have done and I have NEVER got this app to display properly. I've had it for maybe a year or more but I've never been able to try it because it won't display correctly.... Please fix. I would LOVE to try your app. Thank you for your time.
Review by Hiyat on Blimp Code.