Avast! Internet Security (NITRO Update)did not update the VPS automatically,i have to do it manually.
Steps taken in order to Automatic update start again:1.Repair option with multiple restart
2.Reinstall AIS
3.Reset all setting
4.Make sure that Streaming updates are ON(actively recived updates)
Result:failed.
BTW, i am not worried about it because i know VPS consolidate the streaming updates.just to inform Avast! team. 