Oracle : Ошибка ORA-31669

"Worker process %s violated startup protocol."
*Cause: The worker process whose name is listed started up but then exited
before notifying the creating process that it was finished with
*Action: Refer to any following error messages for possible actions. Check
the trace log for the failed process to see if there is any
information about the failure. Correct the error, if possible, and
try the operation again. If the error occurs again, contact Oracle
Customer Support and report the error.

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