Answer
If you receive the STP response error code SBR.GEN.FAULT.GENERALERRORINCORE, it means that a general error has occurred while checking for responses from the ATO.
This is usually caused by an invalid, cancelled, or revoked machine credential. Log in to the ATO's Relationship Authorisation Manager (RAM) website and download a fresh machine credential and try again.
If the error persists after obtaining a new credential, please contact the Lightning Payroll Support Team.