I've added that error code to the page, but no joy!
You mentioned the KFM editor, but the updated editor shows me the About CKEditor for info when I click the question mark... it does however have reference to both KFM and CKEditor in the title of the browser window. See the private bit below for the title.
Is this all screwed up now because of previous versions of the editor being used? I think this site started with iRite, then went to HTML editor (first version), and now has the current version too!