08-15-2013 06:33 AM
Here is the Norton Knowledge Base article with suggested fix for that error:
May I also suggest you verify your system date, time and timezone the next time it happens in case your clock is losing time occassionaly?
08-20-2013 01:07 PM
This error means that the product cannot find the latest threat protection definitions. This can be caused if the definitions are damaged.
Try these steps:
Please let us know if this resolves your issue.