My script still makes a GUI visible when the player DOESN'T own a gamepass! Why?!?!

I have this code which makes a GUI visible when a player owns a GUI. Does anyone know a way to make this code more, reliable?

Likewise, people who own it sometimes still see the [BUY NOW] button instead!

passid = 256633733

local GamePassService = game:GetService("GamePassService")
function respawned(char)
local player = game.Players:FindFirstChild(char.Name)

if GamePassService:PlayerHasPass(player, passid) then
script.Parent.Parent.Spawn.Visible = true
script.Parent.Visible = false
script.Parent.Parent.Parent.OwnedBikes.Bike12.Visible = true
end
end

game.Workspace.ChildAdded:connect(respawned)

Cheers,

Michael

This is the Hierarchy of the script. The Red arrow is where this code is located.

I'd recommend putting a else before line 11.

passid = 256633733

local GamePassService = game:GetService("GamePassService")
function respawned(char)
local player = game.Players:FindFirstChild(char.Name)

if GamePassService:PlayerHasPass(player, passid) then
script.Parent.Parent.Spawn.Visible = true
script.Parent.Visible = false
script.Parent.Parent.Parent.OwnedBikes.Bike12.Visible = true
else
end
end

game.Workspace.ChildAdded:connect(respawned)

Adding an else will tell the script that if something doesn't happen or has happened, etc, do this. So if OwnedBikes.Bike12.Visible = false then it will remove.