I have this node.js accounts app that I'm trying to implement a mongoDB database onto, but it seems to have errors when I upload it to cpanel. My mongoDB url is in this format: mongodb+srv://:@. After some experimenting, turning the Node.js version to ^14 caused errors to stop, but the app still wouldn't run (going to the url reslted in a 503 error, this is the current state of the server).

github: https://github.com/codingtuba/accounts.aimedtuba/tree/mongodb
before mongo DB: https://github.com/codingtuba/accounts.aimedtuba