Unity spews errors on one scene for no reason.

Hello! I was making a 3d game and on my third level, it spews errors during gameplay. After 5+ minutes the game pretty much crashes.
I have no idea what to do and it was spewing errors about OnGUI().
It goes away when I remove all the obstacles except one.
Game crashed:

Video of errors spewing out.

 

Probably a gameobject with a scale of (0, 0, 0) that you try to move.