Gui functions and keydown functions not doing anything at all?

Pretty simple to understand ; I have a seat in a boat ; I have the boat in a huge transparent block with cancollide off and anchor on . when you enter the block it checks if ur seated then if u are pops up a Gui and if you press e while it is on screen it dissapears and pops a new gui.. you can see the script ;

--// Variables \\--

local part = script.Parent

local plr = game.Players.LocalPlayer

local mouse = plr:GetMouse()

local f = false

local t = true

--gui variables

local eGui = game.StarterGui.pressEgui.eGui

local basic = game.StarterGui.ChooseDifficulty.BasicButton

--// Actions \\--

  

part.Touched:Connect(function()

if plr.Seated == t then

eGui.Visible = t

end

end)

  

mouse.KeyDown:Connect(function(Key)

if Key == "e" then

basic.Visible = t

end

end)

  

basic.MouseButton1Click:Connect(function()

basic.Visible = f

end)

if u need any more info to reslove my issue please comment nothing in output comes up :/