[Kerth]

I have this code. It`s not working. What I doing badly?

Код HTML:

new exp[MAX_PLAYERS];

public OnPlayerDeath(playerid, killerid, reason) {
        if (killerid == INVALID_PLAYER_ID) {
        	exp[playerid]--;
  	    } else {
      		exp[playerid] -= 2;
      		exp[killerid] += 3;
        	new expupdate[127];
			format(expupdate, sizeof(expupdate), "UPDATE `Gracze` SET `Exp` = `Exp`+(%d)  WHERE `Nick` = '%s'",  exp[playerid], exp[killerid], PlayerName(playerid));
		    mysql_query(expupdate);


   }