Oracle Message ORA-16804 - one or more configuration properties in metadata have invalid values

ERRORone or more configuration properties in metadata have invalid values
CAUSEData Guard broker health check detected that one or more configuration properties in the broker configuration had invalid values. The property values were changed while broker management of the database was disabled.
ACTIONCheck Data Guard broker log for more details on which properties have invalid values and reset them through the Data Guard broker.