ORA-31698: Error stack buffer size must be specified and must be greater than 0
Cause: Called get worker exception and either specified NULL or 0 for the error stack size argument
Action: Be sure to specify am error stack buffer size that is big enough to hold the error stack string (e.g. 4096 bytes). If this error occurs from a Data Pump client (e.g. expdp or impdp), 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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