CollectionService/Tag System for GUIs not working?

I'm basically just trying to utilize these systems to reduce lag instead of copying and pasting the script every time I want a GUI to be opened. Everything about the script is working fine, except for the part where it's actually supposed to make the GUI visible on the player's screen lol. Here's the current script:

local ServerScriptService = game:GetService("ServerScriptService")
local CollectionService = game:GetService("CollectionService")
local ReplicatedStorage = game:GetService("ReplicatedStorage")
local StarterGui = game:GetService("StarterGui")
local Players = game:GetService("Players")
local RemoteEvents = ReplicatedStorage:WaitForChild("RemoteEvents")
local GUI = StarterGui:WaitForChild("Photos")

local Modules = ServerScriptService:WaitForChild("Modules")
local Engine = require(Modules:WaitForChild("Engine"))

local Connection = {}

function applyCode(Inst)
	if not Inst:IsA("BasePart") then return end
	Connection[Inst] = {}
	local ProximityPrompt = Instance.new("ProximityPrompt")
	ProximityPrompt.ActionText = Inst:GetAttribute("ActionText")
	ProximityPrompt.ObjectText = Inst:GetAttribute("ObjectText")
	ProximityPrompt.Parent = Inst
	table.insert(Connection[Inst], ProximityPrompt.Triggered:Connect(function(Player)
		if Inst:GetAttribute("Disabled") then return end
		if not GUI:FindFirstChild(Inst:GetAttribute("GUIName")) then
			return
		end
		GUI[Inst:GetAttribute("GUIName")].Enabled = true
	end))
end

task.spawn(function()
	local Tagged = CollectionService:GetTagged("LookAtPicture")
	for count=1, #Tagged do
		local Inst = Tagged[count]
		task.spawn(function()
			applyCode(Inst)
		end)
	end
end)

CollectionService:GetInstanceAddedSignal("LookAtPicture"):Connect(function(Inst)
	task.spawn(function()
		applyCode(Inst)
	end)
end)

CollectionService:GetInstanceRemovedSignal("LookAtPicture"):Connect(function(Inst)
	if not Connection[Inst] then return end
	for count=1, #Connection[Inst] do
		local con = Connection[count]
		con:Disconnect()
	end
	Connection[Inst] = nil
end)

Any and all help is appreciated!