Misconfiguration of the JB Roster plugin can cause an error message to appear where the menu should be showing:
Fatal error: Call to a member function on a non-object in /home/sites/yourdomain.com/public_html/e107_plugins/jbroster_menu/jbroster_menu.php on line 117
If you get this error, the easiest way to fix this is to start over again. You need to uninstall the plugin in the plugin manager, choosing to delete the database tables, but NOT the pluginfiles, and then install the plugin again.
