502 Server Error

[RiversideRocks]

Could this help?

Getting Error: listen EADDRINUSE: address already in use :::3000?

I’d imagine you have two places in your code where you’re setting up a listener to port 3000 (or process.env.PORT). You’ll need to move everything to the same listener and get rid of one of them so your code doesn’t connect to the port more than once. For any more specific guidance, folks will need to be able to see your code.