Have you installed the dependencies? All our commandline UI stuff depends on our (old) libraries. IIRC you will need turnkey-pylib and turnkey-dialog-wrapper (they're on GitHub or in our repo). Confconsole was written years ago and depended on our fork of stuff to work around some issues at the time. There has been intention to go back and tidy things up, but it still works for our purposes so it keeps getting pushed back on the "todo" list...

Also I'd check that your root user has TERM set. Try logging in as the root user and see if you can get it to work there...