One or more outputs of a Designed Member exist in a different Permission Group.
The child plates that constitute the designed member are in a different permission group than the parent designed member object.
You should only see this on a migrated database (before the fix for TR 167167, v08.01.36.0002 and earlier) if you changed the permission group of a designed member and then split that member. In that case, the new designed members will be in the correct permission group, but the plates will be in the active permission group.
Future modifications to the designed member or the plate systems could fail if you do not have access to the plate system permission group.
What You Should Do
Run the repair command written for the message. The command will set the permission group of the plates to the one specified for the designed member.
Alternatively, you can simply change the permission group of a designed member and then change it back to the original. This modification will trigger the permission group propagation so that the plates and designed members will reside in the same permission group.