Error 404 in url shortener (Node certification)

Hi everyone!

I have finished my url-shortener exercise for API certification, but when I send the solution doesn’t pass any proof.

The only thing to do is verify in the DB if the URL to be saved exist (for avoid duplication), but there’s no reason to assume that this is the problem, becasue the error in console is a 404 code. By the way, the project was successfully uploaded.

Here you can find the code on GitHub, and i will appreciate your help, I’m finishing the exercises before a job interview so I can have a little more projects to show in my portfolio!

edit: I forget the link to see the uploaded project