Hey guys, it isnt saving anything. can anyone help me?

local ds = game:GetService("DataStoreService")
local cs = ds:GetDataStore("Cash")

game.Players.PlayerAdded:Connect(function(plr)
	local Cash = plr:WaitForChild("leaderstats"):WaitForChild("Cash")
	
	local data
	local succ, err = pcall(function()
		data = cs:GetAsync(plr.UserId.."_cash", Cash)
		
		if succ then
			Cash = data
			print("a")
		end
	end)
end)

game.Players.PlayerRemoving:Connect(function(plr)
	local data = plr.leaderstats.Cash.Value
	
	local succ, err = pcall(function()
		cs:SetAsync(plr.UserId.."_cash", data)
		
		if succ then
			print("it worked")
		else
			warn(err)
		end
	end)
end)

please help! it says

nil

when i leave which means nothing or there was an error