Exploiter detection message not sending?

So I am making a cafe and I made my own anti-exploit but it doesn't send a message when an exploiter is detected. Here is the script!

local https = game:GetService("HttpService")
local URL = "URL Censored"
local Plr = game.Players.LocalPlayer

if Plr.PlayerGui.Exploiter.Value == true then

    local data = {

        content = "Warning! A player has been caught trying to exploit! Exploit: Fly User's  name: ".. Plr.Name

    }

    local Final = https:JSONEncode(data)
    https:PostAsync(URL, Final)

end

Exploiter = BoolValue