Help Needed: Configuring GitHub Connection for Issue Creation

Is there any more info on how to properly configure the github connection? I've been trying to get it to make an issue and I'm getting a "Not Found" error message, but no additional useful information. I've tried creating the issue in a private repo under my personal org and also one for my work org with now luck. I've tried adjusting the lables / milestones / assignees to the bare minimum but I don't know what's triggering the error. Any ideas?