Answer / guest

Cause: A worker process was requested to clean up and exit
(signaled by PMON, doing cleanup because the master process
died unexpectedly).

Action: If this error occurs from a Data Pump client (e.g.
expdp or impdp), it means that the master process for the
operation died unexpectedly. Check the log file for the
operaton and the trace file for the master process for any
additional information. Try the operation again. If the
error occurs again, contact Oracle Customer Support and
report the error.

Please add more information about this Error

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