ORA-46277
Conflicting operation on unified audit trail
Cause
Unified audit trail is being operated by more than one DBMS_AUDIT_MGMT API from different sessions. The simultaneous execution of the following API with one another and with itself can cause the conflict: FLUSH_UNIFIED_AUDIT_TRAIL, LOAD_UNIFIED_AUDIT_FILES, CLEAN_AUDIT_TRAIL, and SET_AUDIT_TRAIL_LOCATION.
Action
Wait until the execution of one of the API's complete and try executing the API again.