Character Is Nil?

I have a teleportation localscript that teleports the player to a part of the map when a GUI is clicked..

It works perfectly in studio, but in play mode it doesn't work, saying that it's attempting to index a nil value (character)

I don't really know what the problem is, because I can't WaitForChild() the character.

The localscript inside of a gui

player = game.Players.LocalPlayer
character = player.Character
human = character:WaitForChild("Humanoid")
if not character or not character.Parent then
    character = player.CharacterAdded:wait()
end

character = game.Players.LocalPlayer.Character

Sparkles = Instance.new("ParticleEmitter")
script.Parent.MouseButton1Down:connect(function(bloop)
	Sparkles.Rate = 50
	Sparkles.Parent = character.Torso
	wait(2)
	character.Torso.CFrame = CFrame.new(Vector3.new(-14, 9.5, 28.4))
	Sparkles.Enabled = false
	human.WalkSpeed = 25
	script.Parent.Visible = false
	script.Parent.Parent.Spawn.Visible = true
end)

I think you're overcomplicating things, this is how I would do it.

local tppart = game.Workspace.teleport
function onClick()
script.Parent.Parent.Parent.Character.Torso.CFrame = CFrame.new(tppart.Position.x, tppart.Position.y+3, tppart.Position.z)
script.Parent.Visible = false
end
script.Parent.MouseButton1Click(onClick)

--depends on how many parents you have