[Cjgogo]

pawn Код:

CMD:aooc(playerid, params[])
{
    if(IsPlayerAdmin(playerid))
    {
        new sendername[MAX_PLAYER_NAME], string[512],message[256];
        GetPlayerName(playerid, sendername, sizeof(sendername));
        if(sscanf(params,"s[256]",message)) return SendClientMessage(playerid, 0xFFFFFFF,"Syntax error.Correct usage: /ooc [text]");
        format(string, sizeof(string), "{00FF00}(( {FFFFFF}%s: %s {00FF00}))", sendername, message);
        SendClientMessageToAll(0xFFFFFFF, string);
    }
    else SendClientMessage(playerid, 0xFF00FF, "[Admin] Sorry you are not a administrator!");
  return 1;
}

Try it like that,you had no string defined for the message you were about to send