Yet Another Blender Egg Exporter (YABEE)

I had a problem when trying to export my model as a .egg with the uv texture.

postimg.org/image/4wmzp26a5/

What could be the problem?

EDIT: I tried fixing it, and now I get this error:

s22.postimg.org/blu1c90ht/74a341 … e87869.png