HELP WITH DATA STORES? [WONT WORK, PLEASE HELP!]?

You need to save when the player leaves the game too. I also added some things to the script that will help.

Try this:

-- Define variables
local DataStoreService = game:GetService("DataStoreService")
local Players = game:GetService("Players")

-- You should put your data store as a separate variable then the service one 
local DataStore = DataStoreService:GetDataStore("NameHere")

-- Loads the data back to the player
local function Load(plr)
    -- Creates the stats
    local leaderstats = Instance.new("Folder")
    leaderstats.Name = "leaderstats"
    leaderstats.Parent = plr

    local points = Instance.new("IntValue")
    points.Name = "Points"
    points.Parent = leaderstats

    local coins = Instance.new("IntValue")
    coins.Name = "Coins"
    coins.Parent = leaderstats

    -- Don't give a value yet
    local SavedStats
    local Key = "plr-"..plr.UserId -- key

    pcall(function() -- Stops errors
        -- Data Stores can error so thats why I did this
        SavedStats = DataStore:GetAsync(Key)
    end)

    -- Gives the player the data if they have data else create a datastore for them
    if SavedStats then
        points.Value = SavedStats[1]
        coins.Values = SavedStats[2]
    else
        local Values = {
            points.Value;
            coins.Value
        }

        pcall(function() -- Stops errors
            DataStore:SetAsync(Key, Values)
        end)
    end
end

-- Saves on leaving
local function Save(plr)
    local Key = "plr-"..plr.UserId

    local Values = {
        plr.leaderstats.Points.Value;
        plr.leaderstats.Coins.Value
    }

    pcall(function() -- Stops errors
        DataStore:SetAsync(Key, Values)
    end)
end

Players.PlayerAdded:Connect(Load)
Players.PlayerRemoving:Connect(Save)

I know it may look intimidating since it has 63 lines but it's just an upgraded version to what you had. Also make sure you have datastore enabled for your place. If you don't you can enable it by going to your place and clicking on the tree dots. Next press configure this place. Click on Games. Then press the Allow this place to be updated using the Save Place API in your game. checkbox.

Hope this helps!`