DataStore no saving data ?

local Data = game:GetService('DataStoreService'):GetDataStore('hsahahha')

local prefix = 'user_' 

game.Players.PlayerAdded:connect(function(player)
    local Data = Instance.new("Folder",player)
    Data.Name = "Data"
local agility = Instance.new("NumberValue", Data)
    agility.Name = "Agility"
    local Strength = Instance.new("NumberValue", Data)
    Strength.Name = "Strength"
    local defense = Instance.new("NumberValue", Data)
    defense.Name = "Defense"
    local inteligency = Instance.new("NumberValue",Data)
    inteligency.Name = "Inteligency"
    local StatPoints = Instance.new("NumberValue", Data)
    StatPoints.Name = "StatPoints"
    local race = Instance.new("StringValue", Data)
    race.Name = "Race"
    local xp = Instance.new("IntValue", Data)
    xp.Name = "XP"
    local level = Instance.new("NumberValue",Data)
    level.Name = "Level"
        local plrData = Data:GetAsync(prefix  .. tostring(player.UserId))
        if plrData then
        Strength.Value = plrData[1] or 1
        defense.Value = plrData[2] or 1
        StatPoints.Value = plrData[2] or 1
        race.Value = plrData[3] or "Human"
        xp.Value = plrData[4] or 1
        level.Value = plrData[5] or 1
        inteligency.Value = plrData[6] or 1
end

game.Players.PlayerRemoving:connect(function(player)
    Data:SetAsync(prefix  .. tostring(player.UserId), {
        player.Data.Agility.Value,
        player.Data.Strength.Value,
        player.Data.Defense.Value,
        player.Data.StatPoints.Value,
        player.Data.Race.Value,
        player.Data.XP.Value,
        player.Data.Level.Value,
        player.Data.Inteligency.Value
    })
end)