This script should start timer countdown but there is a problem?

it only works in one players and the intermission label doesnt become visible

local re = game.ReplicatedStorage
local rev = game.ReplicatedStorage.RemoteEvent3
local rev2 = game.ReplicatedStorage.RemoteEvent4
local timer = re.timer
local rev3 = re.RemoteEvent5

local plrn = #game.Players:GetPlayers()

while true do
	local NotEnoughPlayers = game.ReplicatedStorage.bool
	local Enoughplayers = false
	local timeractive = false
	
	if plrn < 2 then
		NotEnoughPlayers.Value = true
	end
	while NotEnoughPlayers.Value == true do
		wait(3)
		rev:FireAllClients()
	end
	if plrn >= 2 then
		timeractive = true
		NotEnoughPlayers.Value = false
	end
	while timeractive do
		wait(1)
		timer.Value = timer.Value - 1
		rev2:FireAllClients()
		rev3:FireAllClients()
	end
end

in intermission label local script :

local rev3 = game.ReplicatedStorage.RemoteEvent5
local timer = game.ReplicatedStorage.timer

rev3.OnClientEvent:Connect(function()
	timer.Changed:Connect(function()
		script.Parent.Text = "Intermission:".. timer.Value
		script.Parent.Visible = true
	end)
end)

in "there is not enough players label" localscript

local rep = game:GetService("ReplicatedStorage")
local re = game.ReplicatedStorage.RemoteEvent3
local re2 = game.ReplicatedStorage.RemoteEvent4
local plrn = #game.Players:GetPlayers()

local function oncev()
	if plrn < 2 then
		script.Parent.Visible = true
	end
end

local function oncev2()
	script.Parent.Visible = false
end

re.OnClientEvent:Connect(oncev)
re2.OnClientEvent:Connect(oncev2)