"Unknown error" when trying to back up Home Assistant Container

Hey folks!

I’m having issues with my old ubuntu server, and I am trying to move from Home Assistant Container to HAOS. When I attempt to do a backup on the container, I get a pop-up, containing “Unknown Error” and an OK button.

I looked in the backup folder, and saw only the 3 previous backups that were done. Even after deleting those 3 backups, still the same message.

I am running:
Home Assistant Container - 2024.1.3
Docker - 24.0.7
Ubuntu - 22.04.3 LTS

I appreciate all the help I can get, thank you.