ORA-01616: instance [string] (thread [string]) is open - cannot disable
Cause: The thread is not closed. The last instance to use the thread died leaving the thread open. A thread cannot be disabled until it is closed. It is still required for crash or instance recovery.
Action: If the database is open, instance recovery should close the thread soon - wait a few minutes. Otherwise open the database - crash recovery will close the thread.
Error Type: ORA