Back End Development and APIs Projects - URL Shortener Microservice. Project complete and fails on tests

Tell us what’s happening:
Hi all. I’ve completed project and tested it manually. It works fine. Yet I’m not able to pass 3rd auto test in challenge. Can anyone take a look please? Links are below. Thanks

Your project link(s)
githubLink: GitHub - will-s-205/fcc-boilerplate-project-urlshortener: A boilerplate for a freeCodeCamp project.
solution: fcc-boilerplate-project-urlshortener - Replit

Your browser information:
User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/ Safari/537.36

Challenge: Back End Development and APIs Projects - URL Shortener Microservice

Link to the challenge:

It is weird. If I submit your project url and it fails, I can keep submitting it until if finally passes.

Seems like I implemented AI and Machine Learning in this challenge without knowing it :sweat_smile:

Resolved, after I replaced DB by methods with async/await. Seems like I used obsolete approach. More info can be found in a link below.