" CST Error, duplicate key value violates unique restraint. "Fade history_p key" "
Errors like this and similar errors can be found in the NetVault database directory under:
On any NetVault instance, you will see many logs under pg_logs even if your NetVault instance is completely idle.
This is the logging from the NV Postgres DB on the backend and is constantly logging messages, warnings, errors, etc.
Most of these errors are going to be "red-herrings" and a non-issue.
Keep in mind that any major error in NetVault is going to present itself in the NetVault logs or Alerts, anything else is going to be recorded by internal NetVault logging but not readily visible, and no cause for concern.