How to prevent my datastore script from giving an Error?

I have a script that saves Money from Players so they keep it the next time they join but it gives an error and I dont know how to fix it. Here is my script:

local DSService = game:GetService('DataStoreService'):GetDataStore('Hamburger223232')
game.Players.PlayerAdded:connect(function(plr)
	-- Define variables
	print('waiting until tycoonscript ready')
	wait(6)
	print('Starting')
	local uniquekey = 'id-'..plr.userId
	local leaderstats = Instance.new('IntValue', plr)
	local Moneystorage = game.ServerStorage:FindFirstChild('PlayerMoney')
	local PlayerMoney = Moneystorage:FindFirstChild(plr.Name)
	local savevalue =  PlayerMoney
	--leaderstats.Name = 'leaderstats'
	--savevalue.Parent = leaderstats
	--savevalue.Name = 'Cash'
	
	-- GetAsync
	local GetSaved = DSService:GetAsync(uniquekey)
	if GetSaved then
		savevalue.Value = GetSaved[1]
	else
		local NumbersForSaving = {savevalue.Value}
		DSService:SetAsync(uniquekey, NumbersForSaving)
	end
end)

game.Players.PlayerRemoving:connect(function(plr)
	local Moneystorage = game.ServerStorage:FindFirstChild('PlayerMoney')
	local PlayerMoney = Moneystorage:FindFirstChild(plr.Name)
	local savevalue =  PlayerMoney
local uniquekey = 'id-'..plr.userId
local Savetable = {savevalue.Value}
DSService:SetAsync(uniquekey, Savetable)		
end)

When i test it with an alt in game this is what shows in the output. ServerScriptService.Save Service :19: attempt to index local 'savevalue' (a number value)

If anybody could help that would be amazing '

You should still wrap your data saving and loading in an error handler to make sure your script doesn’t error and stop working because it failed to save/load

You can use

Pcall for instance

pcall(function()

end)