Error (Expression): Variable PAGE_NAME is undefined.

?? (20, 0) /var/www.cms.goethe.de/html/c40/goethe/_fritz/components/app/webtrekk/tasks/cg15_pagename.cfc
CF_TEMPLATEPROXY (51, 0) /var/www.cms.goethe.de/html/c40/goethe/_fritz/components/app/webtrekk/builder.cfc
CF_TEMPLATEPROXY (30, 0) /var/www.cms.goethe.de/html/c40/goethe/_templates/goethe/_webtrek.cfm ... [22]