ORA-31672: Worker process string died unexpectedly
Cause: A Data Pump process model worker process died unexpectedly, so PMON is cleaning up the process
Action: Check your system for problems. Check the trace file for the process, if one was created, for any additional information. Correct the error, if possible, and try the operation again. If the error occurs again, contact Oracle Customer Support and report the error
https://support.oracle.com/
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