Oracle : Ошибка ORA-16661

"the standby database needs to be reinstated"
*Cause: A role change has caused this database to require reinstatement.
*Action: Use the DGMGRL REINSTATE DATABASE command or Enterprise Manager to
reinstate the database. Reinstate the database as soon as
possible, because the database will have to be re-created if
another role change occurs while it is in this state.

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