Is this script Modifiable to a different leaderboard? If so how can I change it?

Basically what the title says I'm looking to change the leaderboard that this script uses because I tried fixing it my self It's not fixable to my knowledge sadly... This is the original script no edits.

--Services--
	local Players = game:GetService("Players")
	local ReplicatedStorage = game:GetService("ReplicatedStorage")

--Variables--
	local Player = Players.LocalPlayer
	local PlayerGui = Player.PlayerGui
	local LeaderStats = Player:FindFirstChild("leaderstats")
	local RequestLeaderboardChangeMaster = game.ReplicatedStorage.RequestLeaderboardChange
	local Backpack = Player:FindFirstChild("Backpack")
	local StarterGear = Player:FindFirstChild("StarterGear")
	local SurfaceGui = ReplicatedStorage:FindFirstChild("Shop", true):Clone()
	SurfaceGui.Parent = PlayerGui
	local mouse = Player:GetMouse()

	local ItemsForSale = {
		["Sword"] = {
			["Cost"] = 10;
			["Currency"] = "Tickets";
		},
		["Sword2"] = {
			["Cost"] = 20;
			["Currency"] = "Tickets";
		},
		["Sword3"] = {
			["Cost"] = 30;
			["Currency"] = "Tickets";
		}
	}
	
	local ItemNames = {"Sword","Sword2","Sword3"}

local function UpdateShopTarget()
	if mouse.Target then
		if mouse.Target.Name == "Shop" then
			SurfaceGui.Adornee = mouse.Target
		else
			SurfaceGui.Adornee = nil
		end
	else
		SurfaceGui.Adornee = nil
	end
end

local function GetMoney(Currency)
	local IntValue = LeaderStats:FindFirstChild(Currency)
	if IntValue then
		return IntValue.Value
	end
	return 0
end

local function SubtractMoney(Currency, Amount)
	local LeaderboardChangeObject = RequestLeaderboardChangeMaster:clone()
	local valueToUpdate = Instance.new("IntValue")
	valueToUpdate.Name = Currency
	valueToUpdate.Value = GetMoney(Currency) - Amount
	valueToUpdate.Parent = LeaderboardChangeObject.RequestedValues
	LeaderboardChangeObject.playerName.Value = Player.Name
	LeaderboardChangeObject.Parent = game.Workspace
end

local function AwardItem(ItemName)
	local Item = ReplicatedStorage.Weapons:FindFirstChild(ItemName)
	if Item then
		Item = Item:Clone()
		Item.Parent = Backpack

		Item = Item:Clone()
		Item.Parent = StarterGear
	end
end

--SurfaceGui Pre-initialization--
local Window = SurfaceGui:FindFirstChild("Window")
local ProtoButton = SurfaceGui:FindFirstChild("ProtoButton")
for i=1, #ItemNames do
	newButton = ProtoButton:clone()
	newButton.Name = ItemNames[i]
	newButton.Position = UDim2.new(0,22,0,100*i)
	newButton.Active = true
	newButton.Visible = true
	newButton.Parent = Window
end

Window.CanvasSize = UDim2.new(1,0,0,100+100*#ItemNames)

--SurfaceGui Variables--
local ArrayOfChildren = Window:GetChildren()

for _, Button in pairs (ArrayOfChildren) do
	local ItemName = Button.Name
	--print("Got button", ItemName)
	local ItemAttributes = ItemsForSale[ItemName]
	if ItemAttributes ~= nil then
		--print("Got data for", ItemName)
		local Cost = ItemAttributes["Cost"]
		local Currency = ItemAttributes["Currency"]
		--print("   ", "Cost:", Cost)
		--print("   ", "Currency:", Currency)
		Button.Text = ItemName..": "..Cost.." "..Currency
		Button.MouseButton1Click:connect(function()
			if LeaderStats then
				if GetMoney(Currency) >= Cost then
					SubtractMoney(Currency, Cost)
					AwardItem(ItemName)
				end
			end
		end)
	end
end

--Connection event to map the Shop GUI onto whatever the mouse is hovering on (provided it's named "Shop")
mouse.Move:connect(UpdateShopTarget)