ORA-31672: Worker process string died unexpectedly. Cause: A Data Pump processmodel worker process died unexpectedly, so PMON
is cleaning up the process. Action: Check your system forproblems. Check the trace file for the process, if
one was created, for any additional information. Correct the error, ifpossible, and
try the operation again. If the error occurs again, contact Oracle CustomerSupport
and report the error.