Error when saving file

Hey,

I'm having problems with saving my current progress (error-message below). There seem to be some files missing for the gem. I downloaded the first file at the start of this course. Inside the gem-folder there is only a gem.blend file. But as far as I can see there also need to be other png files.   I don't know if MACHIN3Tools is just messing things up around here, but I don't think it will create those file links out of nothing. For other viewers you might want to check and update the source-file.

Also the gem is still called "Cylinder" in that version.