G Code Error from Easel?

I was making this gift for my father in law and the cut wndes early! The final cut out shape made about 1/2 of its first pass then the carve stopped. I suspect the coach finished, because the pop-up came up on my screen asking me if everything worked out okay. After looking around some more I noticed there were some other errors in my cut. There were some shelves and some of the letters and in the image, and the letter and had added little knob that’s not there on my design. Any ideas what’s happening here?