Stopped working on yosimite

I always use to play Touchgrind bmx on my macbook air mid-2013 yet when I did the update to OS X Yosimite I am unable to launch touchgrind bmx when I launch it it crashes immeditly I always click report but the bug has never been fixed yet, Please fix this soon, I am a big fan.

I am giving it 5 stars from my experince with OS X Mavericks

Hishammitani about Touchgrind BMX