Oracle Message ORA-26761 - Standby Redo Logs not available for real time mining

ERRORStandby Redo Logs not available for real time mining
CAUSEStandby Redo Logs required for real time mining by downstream capture process were not available.
ACTIONCheck the configuration of Standby Redo Logs and retry the operation at a later time. To start the capture process without real time mining property, reset DOWNSTREAM_REAL_TIME_MINE parameter of the capture process and retry the operation.