I downloaded the files. I opened the scene file (desktop.0002.ma) and apart from frame 0 pointing to a non-existant image, i could not find anything weird about the file.
Your last save was on frame 340 so after relinking the textures on the image plane and IBL I just hit render and it rendered fine. Even batch renders ok (Frame 0 excluded).
What have you tried so far to troubleshoot this?
Earth: The crazy asylum of the universe.