I tried to invoke the slave retire_forum script (https://github.com/edx/tubular/blob/master/tubular/scripts/retire_one_learner.py) from my local machine against https://courses.stage.edx.org.
And I encountered the error below.
Looks like the URL to retire forum is not correct. See https://github.com/edx/edx-platform/pull/17818/files
Furthermore, if I tried to invoke the script again with the current state, it encounters another error