I've been trying to fix this for 30 minutes... Any way to fix this script?[EDITED]

Here's the script:

player = game.Players.LocalPlayer
Bought = script.Parent.Bought
Bought.Value = false

local HireCost = Instance.new("IntValue")
HireCost.Parent = player
HireCost.Value = 10

script.Parent.MouseButton1Click:connect(function(Building)
    local leaderstats = player:FindFirstChild("leaderstats")
    local mg = script.Parent:WaitForChild("HireMoney")
    if leaderstats.Cash.Value >= HireCost.Value then
         player.leaderstats.Cash.Value = player.leaderstats.Cash.Value - HireCost.Value
        if Bought.Value == false then
            Bought.Value = true
            HireCost.Value = HireCost.Value*2
            mg.Value = mg.Value + 1
        end
        script.Parent.Text = 'Hire Bil for $'..HireCost.Value
    end
end)

There is also another script in the button:

while true do
    local player = game.Players.LocalPlayer
    Bought = script.Parent.Bought
    local mg = script.Parent:WaitForChild("HireMoney")
    wait(0.5)
    if Bought.Value == true then
        player.leaderstats.Cash.Value = player.leaderstats.Cash.Value + mg.Value
    elseif Bought.Value == false then
    --Nothing Should Happen If It Has Not Been Bought
    end
end 

It works perfectly in studio, but doesn't work in-game.This is a Local Script. Please fix this. Thanks!