I'm trying to bake my object to have a single texture so that I can export it, but I always get a "Circular reference in texture stack" error at the top.

Sometimes it will change to a random image in the UV editor and overwrite parts of my textures, resulting in my object getting warped. I'm using Blender Render.

Is there something I'm missing here? What could be the cause of such an issue?

I've attached my .blend file with all of the textures used to generate it, if that helps any https://transfer.sh/8d7Nz/house.zip

Thanks!