[Need support]: Docker error when starting backend for example

[mpelley]

Describe the problem

(Note: I'm a novice with Docker.)
I have a VM with a clean install of Ubuntu 22.04.
I installed the "Docker Desktop" 4.27.2, Java, and Maven.
I cloned the repo for the Helenium Example.
I started the Docker Desktop, which starts the Docker daemon.
In a terminal in the infra folder, I did "docker compose up -d".
The selector-imitator container started.
The postgres-db container did not start. The error is:
Error response from daemon: Ports are not available: exposing port TCP 0.0.0.0:5432 -> 0.0.0.0:0: listen tcp 0.0.0.0:5432: bind: address already in use
Any suggestions how to fix this?

Healenium Proxy version

3.4.6 is the "healenium.version" in pom.xml

Healenium Backend version

3.4.3

Selenium version

4.15.0

Logs appeared during using Healenium

Things didn't get far enough to generate and logs.

Additional context

No response