Why wont my string value changer at line 15 work?

Why wont line 15 work? Everything else works fine.

local status = game.ReplicatedStorage:WaitForChild("Status")
local players = game.Players:GetPlayers()
local MapLoader = game.ReplicatedStorage:WaitForChild("MapLoader")

while true do

	game.StarterGui.StatusBar.Enabled = true
	status.Value = "Intermission"
	print("Intermission has started")
	wait(25)
	status.Value = "game starting"
	print("game starting")
	wait(10)
	status.Value = "game in progress"
	MapLoader.Value = "map1"
	wait(250)

end

You were in a localscript right? I think JasonTheOwner's answer in https://scriptinghelpers.org/questions/15807/replicated-storage-and-localscripts-is-it-bi-directional implies that you cannot modify ReplicatedStorage