AlliedModders - Console error Emit Sound

L 06/10/2009 - 12:31:12: [SM] Native "EmitSound" reported: Client index 0 is invalid
L 06/10/2009 - 12:31:12: [SM] Displaying call stack trace for plugin "boomheadshot.smx":
L 06/10/2009 - 12:31:12: [SM] [0] Line 370, /home/groups/sourcemod/compiler-1.2/include/sdktools_sound.inc::EmitSoundToClient()
L 06/10/2009 - 12:31:12: [SM] [1] Line 36, /home/groups/sourcemod/upload_tmp/phpKfC5aj.sp::Event_PlayerDeath()

here is the source code to the plugin I think may be causing it because it's the only one with sound that i have recently added.

Code:

#include sourcemod

#include sdktools





#define Boom          "boomheadshot.wav"



public Plugin:myinfo = 

{

    name = "Boom Headshot!",

    author = "ThatGuy",

    description = "Plays a sound to snipers when they get headshots & victims of headshots",

    version = "1.1",

    url = "http://www.iam-clan.com"

}



public OnPluginStart() {

    HookEvent("player_death", Event_PlayerDeath)

    CreateConVar("BoomHSVersion", "1.1", "Boom Headshot Version", FCVAR_PLUGIN|FCVAR_SPONLY|FCVAR_REPLICATED|FCVAR_NOTIFY)

}



public OnMapStart() 

{

    PrecacheSound(Boom)

    decl String:file[64]

    Format(file, 63, "sound/%s", Boom);

    AddFileToDownloadsTable(file)

}



public Action:Event_PlayerDeath(Handle:event, const String:name[], bool:dontBroadcast)

{

        new attacker = GetClientOfUserId(GetEventInt(event, "attacker"))

        new victim = GetClientOfUserId(GetEventInt(event, "victim"))

    new String:weapon[32]

    GetEventString(event, "weapon", weapon, 32)

    if (GetEventInt(event, "customkill")) {

        if (StrContains(weapon,"sniperrifle") != -1) 

        { 

                

        EmitSoundToClient(attacker, Boom, SOUND_FROM_PLAYER, SNDCHAN_AUTO, SNDLEVEL_NORMAL)

        EmitSoundToClient(victim, Boom, SOUND_FROM_PLAYER, SNDCHAN_AUTO, SNDLEVEL_NORMAL)

    }

    }

    return Plugin_Continue

}