Norton Safety Minder stops working on its own

I have been using Norton Safety Minder and Norton Online family for a long time now. Very recently, I have noticed that soon after booting up, multiple instances of Norton Safety Minder's "paws" appear in the system tray, and that clicking on them causes each one to disappear, leaving none of them in the tray. I can then confirm that Safety Minder is no longer working by going to sites which should be blocked. If I try these sites immediately after I boot up, before the multiple instances appear, then they are properly blocked. This problem is no more than a few weeks old, and is also very disconcerting, as it means my children are no longer protected.

 

I am running Windows 7 64 bit

Norton Internet Security 20.1.1.2

Norton Safety Minder 2.3.0.26

Norton Online 2.3.0.7