Utterances error 404

Hi, I have a problem with signing in to github to use utterances in my blog.

I can login and comment just fine if I use the comment button on my local deployment.

However, if I deploy my website to github pages, and try to sign in to utterances with github, I get the following error:

I’m not sure where I should be looking into to figure this out - utterances? hugo configuration? github pages configuration?
Some tips on where to investigate will be greatly appreciated.
I realize this issue might not be strictly related to hugo, but the community here is super active and helpful so asking here :slight_smile: