Why isn't this datastore saving my values??

First time making my own DataStore, my values aren't saving for some reason??

local DataStore = game:GetService("DataStoreService")
local ToolSave = DataStore:GetDataStore("ToolSave")

game.Players.PlayerAdded:Connect(function(player)
	wait(3)
	--tool
	local Tools = player:WaitForChild("Tools")
	for i,Tool in pairs(Tools:GetChildren()) do
	--
	print(Tool.Value)
	local success, errormessage = pcall(function()
	local Key = player.UserId..Tool.Value
	local data = ToolSave:GetAsync(Key)
	if data then
		print("Player has data")
	elseif not data then
		print("Player has no data")
end
	end)
	if not success then
		warn("Error occurred while getting data err: "..errormessage)
		
		game.Players.PlayerRemoving:Connect(function(player)
			local success, errormessage = pcall(function()
				local Tools = player:WaitFOrChild("Tools")
				for i,tools in pairs(Tools:GetChildren()) do
				local Key = player.UserId.."-Tools"
				if success then
					ToolSave:SetAsync(Key..tools.Value)
					print("Saving tools!")
				elseif not success then
					wait("Error occurred while saving tools: "..errormessage)
				end
				end
			end)
		end)
	end
	end
	end)