ORA-04099: trigger 'string' is valid but not stored in compiled form

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ORA-04099:trigger 'string' is valid but not stored incompiled form
Cause: A trigger was attempted to beretrieved for execution and was found to be
valid, but not stored. This may mean the an upgrade was done improperly from a
non-stored trigger release.
Action: Alter compile the trigger to createthe trigger in stored form. Also, you
may want to review that a proper upgrade was done