Github has been very anti-scraping lately, to the point that I can't even browse it in my browser's private mode. This seems to be impacting your implementation as well:

"Well, that didn't work API rate limit exceeded for 18.220.172.92. Want 5,000 requests/hour instead of 60? Sign in for free to use your own GitHub API quota. Sign in with GitHub If you keep seeing this, open an issue"

Update: Another try and it did work. However, I take exception to your app's assertion that my project is unmaintained. I would call it "stable" and further claim that your assertion is borderline libel. (And its pretty insulting that the rationalization is apparently hidden behind a paywall.)