Textbutton guis not working in FE test?

Trying to make Textbuttons that perform actions when clicked upon, they work completely fine when I turn FE off, but not when I turn FE on, and I do not understand why, could someone tell me how to fix?

Inside regular script inside the textbutton

script.Parent.MouseButton1Click:connect(function()
	if script.Parent.Parent.BorderColor3 ~= Color3.new(1, 1, 1) then	
		script.Parent.Parent.Parent.MeleeBtn.BorderColor3 = Color3.new(0.1, 0.1, 0.1)
		script.Parent.Parent.Parent.RangedBtn.BorderColor3 = Color3.new(0.1, 0.1, 0.1)
		script.Parent.Parent.Parent.SupportBtn.BorderColor3 = Color3.new(0.1, 0.1, 0.1)
		script.Parent.Parent.Parent.AccessoryBtn.BorderColor3 = Color3.new(0.1, 0.1, 0.1)
		script.Parent.Parent.BorderColor3 = Color3.new(1, 1, 1)
		script.Parent.Parent.Parent.MeleeInv.Visible = true
		script.Parent.Parent.Parent.RangedInv.Visible = false
		script.Parent.Parent.Parent.SupportInv.Visible = false
		script.Parent.Parent.Parent.AccessoryInv.Visible = false
	end	
end)

This is just one of them, none of them work, maybe someone could find an error in my script that is caused by fe because as I stated above, it works when FE was disabled.

There are two solutions.

Solution 1:

Turn the script into a local script.

Solution 2:

Use RemoteEvents, they are great for filtering enabled games and are not hard to learn.

Best Solution:

Solution 2