Game freezes

[Sasetar]

I started playing the first level and liking the game so far, especially the graphics and the mood.
But.. When Wenjia reaches the first new ability (double jump) the game freezes. The atmosphere thing is still running, the little particles in the air and start-button works, can return to main menu. I restarted the game, but the same thing happened.

Why is it happening? What can I do to fix this?