Hi there pecnik! I didn't submit the project, but I worked on the music and the art. Can you let us know what error popped up, what level you were on, and whether you downloaded the game or played it in a browser? I'm probably going to try to force the coder to bug fix if the jam allows it when he wakes up.
We look forward to playing your game later today! Thank you so much for taking time out of your day to check ours out!