ORA-39077: unable to subscribe agent [string] to queue "[string]"

Cause: The Data Pump''s communication layer was unable to attach one of its processes to the control or status queue. Subsequent messages will detail the problem.

Action: Fix the problem if possible, or contact Oracle Customer Support.

Error Type: ORA

• Additional information for ORA-39077: unable to subscribe agent [string] to queue "[string]"39077
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