ORA-31671: Worker process string had an

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ORA-31671: Worker process string had an unhandled exception.
Cause: A Data Pump processmodel worker process had an unhandled exception
condition.
Action: Refer to anyfollowing error messages for possible actions. Check the trace
log for the failed process to see if there is any information about thefailure.
Correct the error, if possible, and try the operation again. If the erroroccurs again,
contact Oracle Customer Support and report the error.