Norton internet insight scan

Hi..

I have just updated my product from NIS 2012 to version 21.1.0.18.

When i go to performance then Norton insight the scan begins then stops and displays the message "Norton insight has encounted an unknown error. Please try again later". tried to run it a few times but just get same message. I have run the "get support" options and it says everything ok. any ideas

 

Thanks