Create and Save a Record of a Model

I am working this lesson, but what is wrong my steps:
here is my code
https://replit.com/@spadeX/boilerplate-mongomongoose#myApp.js

Your app is listening on port 3000
/home/runner/boilerplate-mongomongoose/node_modules/mongodb/lib/cmap/connection.js:299
          callback(new MongoError(document));
                   ^

MongoError: bad auth : authentication failed
    at MessageStream.messageHandler (/home/runner/boilerplate-mongomongoose/node_modules/mongodb/lib/cmap/connection.js:299:20)
    at MessageStream.emit (node:events:513:28)
    at processIncomingData (/home/runner/boilerplate-mongomongoose/node_modules/mongodb/lib/cmap/message_stream.js:144:12)
    at MessageStream._write (/home/runner/boilerplate-mongomongoose/node_modules/mongodb/lib/cmap/message_stream.js:42:5)
    at writeOrBuffer (node:internal/streams/writable:391:12)
    at _write (node:internal/streams/writable:332:10)
    at MessageStream.Writable.write (node:internal/streams/writable:336:10)
    at TLSSocket.ondata (node:internal/streams/readable:754:22)
    at TLSSocket.emit (node:events:513:28)
    at addChunk (node:internal/streams/readable:315:12)
    at readableAddChunk (node:internal/streams/readable:289:9)
    at TLSSocket.Readable.push (node:internal/streams/readable:228:10)
    at TLSWrap.onStreamRead (node:internal/stream_base_commons:190:23) {
  ok: 0,
  code: 8000,
  codeName: 'AtlasError'
}
exit status 1

Please let me know?

Your code is not showing for some reason. Could you repost it please?

Please anyone know whats wrong with my code

I think your code is fine. It looks like a problem with authenticating the database. You have your MongoDB URI stored in your SECRETS tab?