Inappropriate reports in daily Report ((sometimes empty))

Dear all; :dmorris:

I made automatic report and it is sending me daily report but It is really strange for me that sometimes I receive a report that showing no activity of Untangle server, for example it puts a line in bandwidth usage and does not showing the amount of Internet usage or other options, just put 0.0.

Is there anyone to help me and give a clue about this to resolve it.

Thanks in advance