The best fix is not to see the page name if you can't read it. PLease report all the places you see the problem.
The only time you can see a page link you can't read is inside a wiki text. But I suppose that in this case, the site organization is bad.
FYI: in tiki1.10 error.tpl redirects to the login box what it is pertinent.
FYI: you cant't test on $user, you can only test on $tiki_p_read