The tutorial with MaxScript didn't work. It happens when I want to convert something to a proxy, and this error pops up.
I already removed the fault.
As for the processor cores, I'm not really sure how to do that. I have 16 GB of RAM.
Answers to the questions:
Yes, this happens in scenes when there's a model downloaded from 3dsky, but not always, so I don't have control over what I can import and what I can't, and I download everything to ensure it has a Corona render. It also happens sometimes with FloorGenerator. When the error appears, the entire file shuts down, and if, for example, the file was saved before the error with that 3D model, and I want to delete it afterward because I know that before I inserted that object, the interactive scene was working, and I delete that model, but then when I try the interactive scene again, there's another error, as if the file is no longer usable, and I can't do anything.
And where can I download V-Ray because on the Chaos website, it's only available for download if you have a license?