[chickentree]

Looking at the top line, which is usually the actual cause of the error:

edu.cmu.cs.stage3.alice.core.IllegalPropertyValueE xception: edu.cmu.cs.stage3.alice.core.question.list.ItemAtI ndex[world.keepScore.__Unnamed0__.__Unnamed2__.__Unname d0__] does not have property named color

It looks like the world has a list named keepScore and at some point the program is trying to read or write to the property "color" which does not exist.

I would save a copy of the movie before you try to find and fix the error as sometimes the movie quits working entirely.

Mark