Error (Expression): Parameter 1 of function IsDefined, which is now request.stCustomdata.templatevariables[request.stPagedata.page.page_id].ankernaviSubObj, must be a syntactically valid variable name.

CF_CFPAGE (74, 0) /var/www.cms.goethe.de/html/c40/goethe/_templates/goethe_mobil/kultur/dossierseite.cfm
CFINCLUDE (20, 0) /var/www.cms.goethe.de/html/c40/contens/util/properties/exec.cfm
CFMODULE (67, 0) /var/www.cms.goethe.de/html/c40/contens/util/properties/execinclude.cfc ... [18]