Logout button in User Menu in Joomla failing

Hi,
I've seen this issue mentioned in other places, but can't figure out a solution.

When my users logout of the joomla site via the Joomla logout button, they are rerouted to a 404 error. It is looking for this page.

..../auth/joomdle/land_logout.php (port 80)

Am I missing a setting?

Thanks,
Laura

Is system chek all green?

Can you open that URL in the browser?

Actually, it shouldn't be trying to go there at all. The logout button is for Joomla and has nothing to do with the joomdle extension.

That is not right: logout in Joomla triggers Joomdlehooks plugin, which calls that page to perform Moodle logout.