people taking people loot from backpack while there sleeping , is there fix for this, 

Can you elaborate on how that's a problem?

when my players are sleeping and people raid them , there taking there backpack withour killing them , dont know how there doing it , person not telling

I see. You're talking about one player looting another player's backpack. I doubt that would be possible, need some evidence.

WhiteThunder

I see. You're talking about one player looting another player's backpack. I doubt that would be possible, need some evidence.

Unless they have been given a permission to "see" the backpack or a plugin is being used to allow it you cannot see the backpack (as admin)  when you encounter a sleeping player and open "loot" function