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!