Why is mine not connecting to the database

Tell us what’s happening:
Describe your issue in detail here.

Your project link(s)

solution: https://replit.com/@codewithvico/boilerplate-mongomongoose-1

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.2 Safari/605.1.15

Challenge: Install and Set Up Mongoose

Link to the challenge: