Why this is crash my server? What is wrong?

function onScriptLoad()
{
        LoadHashes();
}
function onScriptUnload()
{
   SaveHashes();
   CloseHashes();
}
function CreateHashes()
{
   Kills<- HashTable( "Kills" );
   Deaths<- HashTable( "Deaths" );
}   
function SaveHashes()
{
        Kills.Save( "Hashes/Kills.hsh" );
        Deaths.Save( "Hashes/Deaths.hsh" );   
}
function LoadHashes()
{
        CreateHashes();
        Kills.Load( "Hashes/Kills.hsh" );
        Deaths.Load( "Hashes/Deaths.hsh" );
}
function CloseHashes()
{
   Kills.Close();
   Deaths.Close();
   Kills<- null;
   Deaths<- null;
}
function onPlayerConnect( pPlayer )
{   
        pPlayer.Score = Kills.Get( pPlayer );
}
function onPlayerKill( pKiller, pKilled, iWeapon, iBodyPart )
{
   /* Get the weapon name and the body part name, putting in an offset for its Unknown */
   local szWeapon = GetWeaponName( iWeapon ), szBodyPart = GetBodyPartName( iBodyPart );
   
   if ( szBodyPart == "Unknown" ) szBodyPart = "Body";
   
   Message( "[#0080ff]" + pKiller + " killed " + pKilled + " (" + szWeapon + ") (" + szBodyPart + ")", Colour( 255, 0, 0 ) );
   pKiller.Score += 1;
    Kills.Inc( pKiller, 1 );
    Deaths.Inc( pKilled, 1 );
}

Well, I need a script to save score, but I can't make this, because I can't make a scritp for Hashes, who can help me?

I need create a progress bar in my server, but how I can make this?

Jefes

1-Dan
2-Xan
3-Berzerk
4-Xamer

Otros Miembros

1-Skelleton
2-Axel
3-Wood

Es un clan en el cual su sueño es tener una fortuna asi como dice el nombre del clan la fortuna puede ser de dinero en algunos servers, este clan ahora tiene varios miembros.