NOF: Activity Log Not Updating, and, Not Showing Child Online

I have 2 issues:

 

The activity log for one of my children is not updating.  Her last activity is from 4 days ago and she has accessed the computer everyday since.

 

As well, this same child is not showing online when she is in fact online.

 

I am also monitoring my son and both his activity and online status is accurate and up to date.

 

Thanks!