How do I find the source of this touch event, location error?

Ive been trying to get a GUI to pop up whenever I enter an invisible block, using the Touch Event.

Heres the code:

touched = false
script.Parent.Touched:connect(function(hit)
	if touched == false then
		touched = true
		if hit.Parent:findFirstChild("Humanoid") ~= nil then
			local char1 = hit.Parent
			player1 = game.Players:GetPlayerFromCharacter(char1)
		end
		--local TB = player1.PlayerGui.TalkButton
		if player1.PlayerGui:findFirstChild("TalkButton") then
			player1.PlayerGui.TalkButton.Grouper.Activator.Value = "Rabbit"
			player1.PlayerGui.TalkButton.Grouper.Visible = true
		end
	end
end)

script.Parent.TouchEnded:connect(function(hit)
	--[[char2 = hit.Parent
	player2 = game.Players:GetPlayerFromCharacter(char2)]]
	if hit.Parent:findFirstChild("Humanoid") then
		local char1 = hit.Parent
		player1 = game.Players:GetPlayerFromCharacter(char1)
	end
	--local TB = player1.PlayerGui.TalkButton
	touched = false
	if player1.PlayerGui:findFirstChild("TalkButton") then
		player1.PlayerGui.TalkButton.Grouper.Visible = false
	end
end)

Before I put the checks for Humanoid, I was getting an error, "Talkbutton is not located in PlayerGui". However, I place that Element inside the Startergui in studio, and when I check inside the player while in solo mode, its in PlayerGui. After I put the checks, the error stopped showing, but now it still wont change the visibility of the gui. Note, my script works perfectly fine in studio, and there were no errors with the TalkButton, but whenever I play the game from the website I've been receiving these problems.

The code is inside a Server Script that is inside the object which I want to touch.

Help, anyone?