Oracle : Ошибка ORA-38852

"cannot mark the current instance (redo thread) as disabled"
*Cause: The open resetlogs or standby activation operation failed because
it must use a different instance (redo thread) than the current
instance (redo thread) to open the database.
*Action: Shut down this instance and start up using a different instance
name or redo thread number and retry.

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