Error: Workspace.DataStore:15: attempt to index upvalue 'DSService' (a nil value)

local DSService = game:GetService('DataStoreService'):GetDataStore('StoredData')
game.Players.PlayerAdded:connect(function(plr)
	-- Define variables
	local uniquekey = "id-"..plr.userId
	local stats = Instance.new("Configuration", plr)
	local savevalue1 = Instance.new("IntValue",stats)
	local savevalue2 = Instance.new("IntValue",stats)
	stats.Name = "stats"
	savevalue1.Name = "money"
	savevalue2.Name = "bananas"
	savevalue1.Value = 0
	savevalue2.Value = 0
	
	-- GetAsync
	local GetSaved = DSService:GetAsync(uniquekey)
	if GetSaved then
		savevalue1.Value = GetSaved[1]
		savevalue2.Value = GetSaved[2]
	else
		local NumbersForSaving = {savevalue1.Value, savevalue2.Value}
		DSService:SetAsync(uniquekey, NumbersForSaving)
	end
end)

game.Players.PlayerRemoving:connect(function(plr)
local uniquekey = "id-"..plr.userId
local Savetable = {plr.stats.money.Value, plr.stats.bananas.Value}
DSService:SetAsync(uniquekey, Savetable)	
	
	
end)

Note: i don't use leaderstats becuse i don't want it to show up on leaderboard!