When time runs out, NF crashes

I've noticed lately that when my son's time for the day has run out, instead of logging him out, Norton Family crashes. He drags the crash error message off the side of the Windows Desktop and continues on. I've also noticed that when this happens, https:// websites in the blocklist are no longer blocked, although http:// websites in the blocklist are.

The error is always similar to this one:

     Faulting application nf.exe, version 12.11.2.6, faulting module ccl120u.dll, version 12.11.4.4, fault address 0x0006cb1e.

or

     Faulting application nf.exe, version 12.11.2.6, faulting module unknown, version 0.0.0.0, fault address 0x58ce366f.

I believe the "fault address" is sometimes different, but the rest of the error message is the same.

Thanks