NMS crashes repeatedly

For the past 10 hours or so, Norton Mobile Security has crashed every 10 minutes or so. It seems to restart itself immediately, even before I submit the crash report, but still, it's a little unnerving. Has anyone else experienced this? Can anyone suggest a fix?

 

I've tried rebooting my device, but that didn't stop the crashes. I ran Live Update, and that didn't seem to help either.

 

My device is a Motorola Droid RAZR M. My Android version is 4.1.1, and my NMS version is 3.3.0.892.