leaderstats are nor working?

local DataStore = game:GetService("DataStoreService")
local PointsData = DataStore:GetOrderedDataStore("Points")

game.Players.PlayerAdded:Connect(function(plr)
	local points = PointsData:GetAsync(plr.UserId)
	local leaderstats = Instance.new("Folder")
	leaderstats.Name = "leaderstats"
	local pointsValue = Instance.new("IntValue",leaderstats)
	pointsValue.Value = points
	leaderstats.Parent = plr
end)

Well, if you don't provide enough information for us, it will force us to moderate your question as 'Non-Descriptive'. But, I can help you fix various flaws in your code. Thanks to @Feelings_La for providing most of the fixed code. Here's what your code should look like, and explanation given in it :

local DataStore = game:GetService("DataStoreService")
local PointsData = DataStore:GetOrderedDataStore("Points")

game.Players.PlayerAdded:Connect(function(plr)
    local leaderstats = Instance.new("Folder")
    leaderstats.Name = "leaderstats"    
    leaderstats.Parent = plr

    local pointsValue = Instance.new("IntValue")
    pointsValue.Name = "Points" -- You forgot to name your value
    pointsValue.Parent = leaderstats

    local data -- Creating a nil variable
    pcall(function() -- pcall is used to wrap the errors, and make the code to be able to executed further
        data = PointsData:GetAsync(plr.UserId) -- Assigns our data variable to our data
    end)

    -- Now there can be two results of the data. First, it can be 'nil', which means that the data of the player is never saved, or the player has joined for the first time. Second, it can have some value that we can set it to our leaderstats value.
    if data ~= nil then -- If the player joined is not a new player
        pointsValue.Value = data
    else -- If the player joined is a new player
        pointsValue.Value = 0 -- Makes the value to 0, as for new players
    end
end)

Again, thanks to @Feelings_La for saving my time.

Lemme know if it helps!

Do pointsValue.Parent = leaderstats instead of Instance.new("IntValue", leaderstats) because it is not recommended

local DataStore = game:GetService("DataStoreService")
local PointsData = DataStore:GetOrderedDataStore("Points")

game.Players.PlayerAdded:Connect(function(plr)
    local points = PointsData:GetAsync(plr.UserId)

    local leaderstats = Instance.new("Folder")
    leaderstats.Name = "leaderstats"    
    leaderstats.Parent = plr

    local pointsValue = Instance.new("IntValue")
    pointsValue.Value = points
    pointsValue.Parent = leaderstats
end)