Diagnosis
The manual master data maintenance (with transaction SE16) is allowedfor characteristic &V1&.

System Response
The navigation attributes of characteristic &V1& and allcharacteristics that refer to this characteristic cannot be used inaggregates (the relationship characteristic value - attribute value isincorrect in the aggregates if the master data has been manuallychanged).
All aggregates, that use navigation attributes of characteristic &V1&(or one that refers to it) are deactivated.