Diagnosis
There is an internal inconsistency: The mentioned fields have to be setuniquely for a site type definition with more than one site attribute.
This is an internal error which cannot be seen/corrected directly onthe Subscription Agent surface.

Procedure
Do not change any entries manually on database level.
The incorrect site type definition should be deleted and recreated.Fill in the site attributes paying special attention to any messagesreturned by the site attribute maintenance modules.
In case of problems refer to the documentation of the correspondingsite type.