[Bug] Integration fails with error "OpenMediaVault <my_omv_ip> unable to fetch data (500)"; my OMV compose is installed and functional but not in use

[mastakebob]

Describe the issue

My HA OMV integration (v.1.4.2, installed from HACS), is giving me the repeating error "OpenMediaVault <my_omv_ip> unable to fetch data (500)". Looking through the issue history, appears this is related to a change OMV made to its omv-extras plugin a year ago, specifically the 'openmediavault-compose' plugin. I don't use any docker containers or compose on my OMV instance, but I did confirm that my OMV docker setup is working (created, ran, confirmed, deleted a "Portainer" container to confirm). My OMV has no files, services, containers, images running or created. I tried creating and running a Portainer container to see if that solved the integration issue, but no joy.

All troubleshooting threads on this subject from 2023 all talk about 'fixing your omv' compose setup and this issue will go away. I believe I've done that but this issue remains. None of my OMV stats/info are being captured by Home Assistant.

How to reproduce the issue

Steps to reproduce the behavior:

1. Use this HA OMV integration with OMV 6(.9.15).
2. Don't use any containers/compose in your OMV instance

Expected behavior

HA OMV integration pulling my OMV status/info.

Screenshots

Software versions

All fields in this sections are required.

• Home Assistant version: HA 2024.5.3
• openmediavault integration version: v1.4.2
• openmediavault software version: 6.9.15-2 (Shaitan)

Diagnostics data

Traceback/Error logs

Additional context