Hi i was wondering if anyone could help me understand why my save stats script isn't working?

local datastore = game:GetService("DataStoreService")
local ds1 = datastore:GetDataStore("KeysSaveSystem")
local ds2 = datastore:GetDataStore("CashSaveSystem")

game.Players.PlayerAdded:connect(function(plr)
	local folder = Instance.new("Folder", plr)
	folder.Name = "leaderstats"
	local Keys = Instance.new("IntValue", folder)
	Keys.Name = "Keys"
	local cash = Instance.new("IntValue", folder)
	cash.Name = "Cash"
	
	Keys.Value = ds1:GetAsync(plr.UserId) or 0
	ds1:SetAsync(plr.UserId, Keys.Value)
	
	cash.Value = ds2:GetAsync(plr.UserId) or 0
	ds2:SetAsync(plr.UserId, cash.Value)	
	Keys.Changed:connect(function()
		ds1:SetAsync(plr.UserId, Keys.Value)
	end)
	
	cash.Changed:connect(function()
		ds2:SetAsync(plr.UserId, cash.Value)
	end)
end)