Hello,
I got that error when I press export.
I can't use your extension.
I use Aseprite 1.3.10.1
GIFs, PNGs, Spritesheets, all with one click. No more boring tedious work! More pixel-art! · By
I would assume so. Do you have multiple other extensions ? It would help me to figure out what the issue is if you can take a screenshot of your extensions and a file that give you the error.
1. Does the error show up with a brand new file with nothing on it? If you try to export it?
2. Can you try disabling the other extensions and see if the error goes away?