I am not sure about Hue but from the terminal it can be fixed by exporting the correct oozie server.
Use this command to export the oozie url.
To get this oozie url you need to use hue to connect you cluster and navigate to Workflows where you can find a tab called
oozie. Inside this you should see gauges where a lot of properties will be listed. Look for the property oozie.servers.