Money is not a valid member of Folder?

Someone Please Explain What Is Wrong? Attached Below Is The Script.

Tool = script.Parent

Tool.Activated:Connect(function()
	local chr = script.Parent.Parent
	local player = game.Players:GetPlayerFromCharacter(chr)
	local data = player:WaitForChild("Data")
	local money = data.Money
	
	print(player.Name.."used a Banknote.")
	money.Value = money.Value + 500
	
	Tool:Destroy()
end)

If you do not already have a script for the Money then here it is:

local function playerAdded(player)
	local leaderstats = Instance.new("Folder")
	leaderstats.Name = "leaderstats"

	local money = Instance.new("IntValue")
	money.Parent = leaderstats
	money.Name = "Money"
	
	leaderstats.Parent = player
end

game.Players.PlayerAdded:Connect(playerAdded)

Then this will be your script:

Tool = script.Parent

Tool.Activated:Connect(function()
    local chr = script.Parent.Parent
    local player = game.Players:GetPlayerFromCharacter(chr)
    local data = player:WaitForChild("leaderstats")
    local money = data.Money

    print(player.Name.."used a Banknote.")
    money.Value = money.Value + 500

    Tool:Destroy()
end)

Might work...