Well, I can’t access your project using that link you have provided and I don’t think it is the right URL you should be submitting. The link you should submit should look like:
Remember to look at the browser console for errors too:
frame-runner.js:100 Error: {"error":"required field(s) missing"}
frame-runner.js:100 Error: expected 'missing_id' to equal 'missing _id'
jquery.js:10099 PUT https://boilerplate-project-issuetracker.ofk8vb.repl.co/api/issues/fcc-project 500
frame-runner.js:100 Error: {"error":"could not update","_id":"5f665eb46e296f6b9b6a504d"}
frame-runner.js:100 Error: expected { status: 'unavailable' } to be an array
at eval (eval at <anonymous> (frame-runner.js:84), <anonymous>:15:11)