Untappd Account linking stopped working for me a few weeks ago. I found the issue and fixed it and submitted a PR (https://github.com/Kegbot/kegbot-server/pull/340) I’m not sure how active the repo is- doesn’t look like they’re merging any PRs recently, but if you go there, you can see what the fix is (need to add one line to one file).
Glad you added that, actually. Wasn’t aware that it was broken, and I’m having a tasting party at my house soon (new accounts!).
Actually - i broke something else with it. fixing it now and will update.
Update: this is the changes you need: