What is the problem with my datastore script , it doesn't save the stats?

Hello! I'm working on a game and i want to save the prestiges and points , but the datastore doesn't work... Can you guys help me?

My code :

    local DS = game:GetService("DataStoreService"):GetDataStore("SaveMyData")
    game.Players.PlayerAdded:Connect(function(plr)
wait()
local plrkey = "id_"..plr.userId
local savevalue = plr.leaderstats.Points
local savevalue2 = plr.leaderstats.Prestige
local savevalue3 = plr.Code


local GetSaved = DS:GetAsync(plrkey)
if GetSaved then
    savevalue.Value = GetSaved[1]
    savevalue2.Value = GetSaved[2]
    savevalue3.Value = GetSaved[3]

else
    local NumbersForSaving = {savevalue.Value, savevalue2.Value, savevalue3.Value}
    DS:GetAsync(plrkey, NumbersForSaving)
end
    end)

    game.Players.PlayerRemoving:Connect(function(plr)
DS:SetAsync("id_"..plr.userId, {plr.leaderstats.Points.Value, plr.leaderstats.Prestige.Value, 
    plr.Code.Value})
    end)