Oracle Solution for Error ora-38852

ORA-38852: cannot mark the current instance (redo thread) as disabled

What triggered the Error:

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.

What should we do to fix it:

Shut down this instance and start up using a different instance name or redo thread number and retry.