Nintex Workflow

Hello, I'm looking for a way to implement workflow failure notifications in NWC. I've done some digging on this site and found a way to do it in Nintex Office 365, but no mention of whether it's possible in the cloud tool.  Does anyone know how to go about setting up a notification in the event that a workflow fails? We just had one dead-end because one of the approver's emails was entered incorrectly, but the submitter had no way of knowing until she contacted me to check on the instance. Let me know, thanks.