Hi, my name is ***** ***** certified professional with over 10 years experience. I will be glad to try and assist you with this. I am sorry this happened. This could be a glitch in the software and the iPad needs to reboot, lets try and force a reboot > Hold the home button and the power button down for about 30 seconds or until the Apple logo appears on the screen, then release both buttons.
There are situations where the game makers have just not completed it, and just bet nobody gets to the end. May I suggest that you contact the game maker, and ask them if their game has a glitch, or just is not finished.
Also, can you try the game on another device to determine whether it IS your ipad or not.