Gui help?

you need to check to see if the player has it before adding it

local pad = script.Parent
local gui = game.ServerStorage.EditChar1
local function steppedOn(part)
    	 local character = part.Parent   
   	 local player = game.Players:GetPlayerFromCharacter(character) 
       	 if player then
		if  not (player.PlayerGui:FindFirstChild("EditChar1")) then
        		local guiCopy = game.ServerStorage.EditChar1:Clone()
        		guiCopy.Parent = player.PlayerGui       
		end
   	 end
end


pad.Touched:connect(steppedOn)

basically what i added to the code was everytime that someone steps on the part and tries to get the gui i checked to see if the player had the gui in their playerGui folder already. If the player didnt have it then we added it to them so it is only added once