Norton Family - no activity logged or emails received

Hi

I've been successfully using this for a while, but a few weeks ago I stopped receiving email notifications and if I look at the activities it says "no activity in last 7 days".  My son gets kicked off his PC when his time slot is over, and gets warning messages if he visits certain sites, so the s/w is working on his PC.  But nothing is logged.  Any ideas.

His PC is Windows 7.