IslandBoostHandler - Local Script!

local Players = game:GetService("Players")

local Player = Players.LocalPlayer
local PlayerGui = Player.PlayerGui

local Gui = PlayerGui:WaitForChild("Islands")

local IslandBoostLabel = Gui.IslandBoost

while true do
    IslandBoostLabel.Text = "Island Boost: "..Player.Islands.IslandBoost.Value.."X"
    wait(0.01)
end