Unable to cast value to Object?

So, I'm trying to do a Gui that shows up to all the players when someone (an HR from my group) clicks another button. I get an error from the Script that is inside of the Gui, that says "Unable to cast value to Object" https://gyazo.com/8d6591d0cd133a22e61f5f0711b0e298

local RemoteEvent = game.ReplicatedStorage.AdvertEvent

function Click()
    local Player = script.Parent.Parent.Parent.Parent.Parent.Name
    RemoteEvent:FireClient(Player)
end

script.Parent.MouseButton1Click:Connect(Click)

I have a LocalScript inside StarterPlayer > StarterPlayerScripts > Events > LocalScript that puts:

local AdvertEvent = game.ReplicatedStorage.AdvertEvent
local Player = game.Players.LocalPlayer

function ShowAdvert()
    local Gui = game.StarterGui.AdvertGui
    if (not Player.PlayerGui:FindFirstChild(Gui.Name)) then
        Gui.Parent = Player.PlayerGui
    end
end

AdvertEvent.OnClientEvent:Connect(ShowAdvert)