Norton internet security just disappeared from computer after running update

Ran an update twice.   It stated that the update was completed with errors.  I restarted my computer and when it rebooted, there was no NIS icon in task bar which where I accessed it.  there is an icon on the desktop but it does not bring up NIS.

 

OK.  What next?   CAnnot tell you what version except that it was renewed last year. 

 

Where did it go??     How to restore it??

 

thanks