Is this upgraded catalog from 10g .? then refer to : 10g Catalog Upgrade To 11g Failed with error Could not find the catalog version file [ID 1504227.1]
If this was a working catalog try restoring from the backups and check the version and version.atr from System folder in the catalog.
Also could you paste you PresentationServices log here .?
Hope this helps.Pls mark if it does.