Gui Not Going Away?

I made this Gui That allows you to had an item to a certain person. This GUI has a point system leaderboard for a group. The only problem is I want only a certain rank to see the Gui but for some reason everyone sees it. Here is the scripts.

This is checking the player

Player = game.Players.LocalPlayer

if Player:IsInGroup(156524080) and Player:GetRankInGroup(156524080) >= 12 then
    script.Parent.Visible = true
end

The Button Being Clicked

script.Parent.MouseButton1Click:connect(function()
game.Players.LocalPlayer.leaderstats.Points.Value = game.Players.LocalPlayer.leaderstats.Points.Value + 1
end)

Player = game.Players.LocalPlayer

if Player:IsInGroup(1148696) and Player:GetRankInGroup(1148696) >= 21 then
    script.Parent.Parent.Visible = true
    else
    script.Parent.Parent.Visible = false
end

The Leaderboard

players = game:GetService('Players')
startingcash = 0
-- Variables

players.PlayerAdded:connect(function(plr)
local stats = Instance.new('IntValue')
local cash = Instance.new('IntValue')
stats.Name = 'leaderstats'
cash.Name = 'Points'
cash.Parent = stats
cash.Value = startingcash
stats.Parent = plr
local AddPointGui = script.Parent.Parent.StarterGui.HandtoGui.Accept.Yes
AddPointGui.MouseButton1Click:connect(function()
cash.Value = cash.Value + 1
end)
end)
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