Crash problem

public OnPlayerTakeDamage(playerid, issuerid, Float: amount, weaponid)
{
    if(IsACop(issuerid))
    {
        if(GetPlayerWeapon(issuerid) == 23)
        if(Tazer[playerid] == 1)
        {
            new string[120];
            format(string, sizeof(string), "%s puca iz tazera i pogadja gradjanina %s.", GetName(issuerid) ,GetName(playerid));
            ProxDetector(20.0, issuerid,string,LBLUE ,LBLUE ,LBLUE ,LBLUE ,LBLUE );
            TogglePlayerControllable(playerid, 0);
            IgracTazovan[playerid] = 1;
            GameTextForPlayer(playerid,"~r~SOKIRANI STE",1000,3);
            TazerTimer[playerid] = SetTimerEx("TazovanTajmer", 10000, false, "i", playerid);
            LoopingAnim(playerid, "CRACK", "crckdeth2", 4.0, 1, 0, 0, 0, 0);
        }
    }


    if(udaranje[issuerid] == 0)
    if(GetPlayerWeapon(issuerid) == 0)
    {
    udaranje[issuerid] ++;
    {
    if(udaranje[issuerid] == 5)
    {
    WantedLevel[issuerid] += 2;
    SetPlayerCriminal(issuerid,255, "Tuca gradjana");
    SetTimerEx("Udaranje", 300000, false, "i", playerid);
    }
    }
    }

    if(udaranje[issuerid] == 0)
    if(GetPlayerWeapon(issuerid) == 0)
    if(IsACop(playerid))
    {
    udaranje[issuerid] ++;
    {
    if(udaranje[issuerid] == 3)
    {
    WantedLevel[issuerid] += 3;
    SetPlayerCriminal(issuerid,255, "Tuca Policije");
    SetTimerEx("Udaranje", 300000, false, "i", playerid);
    }
    }
    }

    if(GetPlayerWeapon(issuerid) > 0)
    {
    udaranje[issuerid] ++;
    {
    if(udaranje[issuerid] == 3)
    {
    WantedLevel[issuerid] += 4;
    SetPlayerCriminal(issuerid,255, "Napad na gradjana");
    SetTimerEx("Udaranje", 300000, false, "i", playerid);
    }
    }
    }

    return 1;
}

///////////////////////////////
forward Udaranje(playerid);
public Udaranje(playerid)
{
udaranje[playerid] -= 1;
return 1;
}