Pixel shader export

Hey everyone, I’m trying to create high quality pixel art using this addon:

https://translate.google.com/translate?sl=auto&tl=en&js=y&prev=_t&hl=en&ie=UTF-8&u=http%3A%2F%2Fkushi.lv9.org%2Fpixelartshader%2Findex.html&edit-text=&act=url

But each time I try exporting the file like I’m intended to, I get an error and the file exported is of 0 bytes.

I would like to add that I tried selecting the model on the top right corner before exporting, and I also tried doing this with another export format (PMX editor).

I’m beginning to wonder if this is a procedural error caused because of version difference or something wrong in the user preferences.