504 Gateway Time-out for Express app

Hey guys,

So here is my scenario-

Just created an ExpressJS app and hosted it on my CyberPanel powered VPS.

Just when I try to access the app it’s showing Error 404.
The App seems to be working good on my local machine.

Here is the documentation I followed:

Let me know if I’m doing anything wrong.

Regards

Have you followed all the steps exactly?