To fix the BarAssistant permission error, I ran this on the unraid command line: "chown sshd:sshd /mnt/user/appdata/bar_assistant/data"
The path above is using the default appdata path from the template, so it could be different depending on your config.
I'm assuming the more appropriate solution would be to alter the user that BarAssistant runs as, but that's outside my wheelhouse.