You didn't pay for this program so to be rude about lack of support for this rare error is disrespectful.
It's possible that Ashley has absolutely no idea what the problem is but is adding some extra debug code or messageboxes to locate the problem, but to give you 'bull' about upgrading would not solve the problem at all
By the way, there were some image editor fixes and additions to stop these types of errors. Do you not get an out of VRAM message or similar?