My gun shop scripts don't work? It never gives you your gun nor take away your money.

Hello! I am currently making a gun shop for my game where when you click it, you get your gun and you lose money; as if you were buying it in real life. I've been trying my best to fix, but it never worked. Here are the scripts.

local ToolNames = {"Shotgun"}
local Storage = game:GetService("ServerStorage")

local Part = script.Parent
local ClickDetector = Part:WaitForChild("ClickDetector")
function onPlayerEntered(newPlayer)
ClickDetector.MouseClick:connect(function(Player)
    debounce = false
    local stats = newPlayer.leaderstats
    local cash = stats.Money
    stats.Parent = newPlayer
    if cash.Value >= 50 then
        cash.Value = cash.Value - 50
        wait(100)
game.Players.ChildAdded:connect(onPlayerEntered)
    if Player and Player.Character then
        local Backpack = Player:WaitForChild("Backpack")
        for i = 1, #ToolNames do
            local Tool = Storage:FindFirstChild(ToolNames[i])
            if Tool then
                Tool:clone().Parent = Backpack
        end
    end
end
end
end