Well, now i found a very very strange problem in PK modes.
That, if players in the same map, let's assume it TwinCity .. and i was one of those players .. then, i opened my PK.
The problem is that, when i open my PK, the whole Players in my map AUTOMATICALLY open their PK mode "Just the same as me".
lol i have never seen such as this problem, it looks like they "all players" are linked somehow?!