MouseButton1Click not working on one Local script but works on all the others?

So i have multiple Gui buttons that navigate through the menu and i have MouseButton1Click's to do that. Then i have one that is supposed to give your a tool, however that one button doesnt even register its being clicked.

Heres my code for the tool button

local storage = game:GetService("ServerStorage")
local greatSword = storage.GreatSword:Clone()

function leftClick(plr)
    print("equip")
    greatSword.Parent = plr.Backpack
    script.Parent.Visible = false
end

script.Parent.MouseButton1Click:Connect(leftClick)

And this is the code for the normal navigation buttons

script.Parent.Parent.Parent.Weapons.Visible = false

function leftClick()
    script.Parent.Parent.Visible = false
    script.Parent.Parent.Parent.Weapons.Visible = true
end

script.Parent.MouseButton1Click:Connect(leftClick)

The important bits are the functions, i am fairly new to roblox's language of scripting so it could be a simple mistake but i just cant figure out when they both are using the same function code but the tool button one just wont work while the other does.

Also they are buth under frames in the ScreenGui