How can I solve the problem related to MCafee autoupdate?

Hi,
I use mcafee antivirus. Yesterday suddenly I saw that it's not updated. I got surprised because it should be updated automatically but it wasn't. I tried to update it manually but I saw the massage below:
VirusScan AutoUpdate Properties – AutoUpdate X
Failed to initialize Common Updater subsystem. Make sure the McAfee Framework service is running. McAfee Common Framework returned error fffff95b @ 2
How can I get rid of the problem related to mcafee autoupdate?
Thanks
