Why isn't Data isn't being stored/loaded?

For some reason the data I have isn't being stored (Only tested in studio). Yes I do have allow APIs on. Any and all help would be appreciated.

1st script store in ServerScriptStorage named "Startup"

local Players = game:GetService("Players")
local RS = game:GetService("ReplicatedStorage")
local RunService = game:GetService("RunService")

local DSS = game:GetService("DataStoreService")
local Datastore = DSS:GetDataStore("Test")

local ReplicatedModules = RS:WaitForChild("Modules")
local InsCreator = require(ReplicatedModules.InstanceCreator)

local function PlayerAdded(plr)
	local leaderstats = InsCreator.create("Folder",{Name = "leaderstats",Parent = plr})
	local pizza = InsCreator.create("IntValue",{Name = "Pizza",Value = 0})
	local cash = InsCreator.create("IntValue",{Name = "Cash",Value = 0})
	local rebirths = InsCreator.create("IntValue",{Name = "Rebirths",Value = 0})
	
	local key = string.format("%s's data",plr.UserId)
	
	local success, err = pcall(function()
		local save = Datastore:GetAsync(key)
		if save then
			pizza.Value = save[1]
			cash.Value = save[2]
			rebirths.Value = save[3]
		end
	end)
	
	if success then
		print(string.format("loaded %s's data",plr.Name))
	elseif err then
		warn(err)
		print(string.format("Failed to load %s data",plr.Name))
	end
	
	leaderstats.Parent = plr
	pizza.Parent = leaderstats
	cash.Parent = leaderstats
	rebirths.Parent = leaderstats
	
end

local function PlayerRemoving(plr)
	local key = string.format("%s's data",plr.UserId)
	local ls = plr.leaderstats
	local success,err = pcall(function()
		Datastore:SetAsync(key,{ls.Pizza.Value,ls.Cash.Value,ls.Rebirths.Value})
	end)
	if success then
		print(string.format("saved %s's data",plr.Name))
	elseif err then
		warn(err)
	end
end




Players.PlayerAdded:Connect(PlayerAdded)
Players.PlayerRemoving:Connect(PlayerRemoving)

2nd script(module script) stored in Replicated Storage > Modules named InstanceCreator

local InstanceCreator = {}

function InstanceCreator.create(class,properties)
	local newItem = {}
	newItem = Instance.new(class)
	for i, v in pairs(properties) do 
		newItem[i] = v
	end
	return newItem
end


return InstanceCreator