Last modified: 2008-05-06 15:57:58 UTC
The link "letzte unmarkierte Seite" ("latest unmarked page" => "page" should be "revision"!?) in the quality/reviewed box has a } at its end! See http://de.labs.wikimedia.org/w/index.php?title=Hauptseite&stableid=25224 Result: http://de.labs.wikimedia.org/w/index.php?title=Hauptseite&stable=0} That means, that the link doesn't work!
BTW: Not at http://en.labs.wikimedia.org/ - what is different there? To what extent is the configuration different there?
Looks like a local typo. Probably by someone editing a MW: page.