Strange error with BE Filters

[xjoker_ 25]

Hello, 

I have a problem with BE filters. 

In my mission i have this line : 

player addMPEventHandler ["MPHit",{_t = (_this select 3); if(_t isEqualTo player) then {playSound "hitmarker";};}];

Notice that I use "MPHit"

Now when i join the server i get this error in mpeventhandler.log : 

... - #0 "Killed" 2:3313 C_man_1 - "_t = (_this select 3); if(_t isEqualTo player) then {playSound "hitmarker";};"

"Killed" , yes...

 

I tried this in mpeventhandler and also in remoteExec (because both kick me for that)

7 "" !="Killed" !="_t = (_this select 3); if(_t isEqualTo player) then {playSound \"hitmarker\";};"

But it doesn't work i still get kicked. I also tried with MPHit , and Hit instead of Killed but doesn't work either.