docker-compose up - 502 bad gateway

Cloned the repo from github

In docker compose changed ports to
- 60000:80
(thats the one we have open)

I do:
docker compose up

I go to
mydomainname.example.com:60000
And get 502 bad gateway

Did I do something incorrectly here or is the docker setup broken?

Thanks for assistance!

Start by reviewing the docker-compose port mapping and the container logs after running docker compose up. Confirm whether the service is listening on the mapped port and identify why the request reaches a 502. Done means the application is reachable through the documented host and port without a bad gateway response.

Written by the indexing model from the issue text.