[Flo_White]

Код:

new suicider[MAX_PLAYER_NAME];
	if(strcmp(cmd, "/kill", true) == 0)
	{
       new string[128];
		GetPlayerName(playerid, suicider, sizeof(suicider));
		SetPlayerHealth(playerid,0.0);
		format(string, sizeof(string), "* %s takes out a knife from jacket, and takes a suicide.", suicider);
		SendClientMessageToAll(COLOR_RED, string);
		return 1;
}

you forgot the new string[128]; and a }