Remote event not firing to client?

I have a game that basically has a few maps and at the start of each round the server fires all clients for a remote events which gets the client to start a timer on their end. But the remote event wont fire at all??

Please help. SERVER

local maps = {"CrazyContainers"}

while true do
    print("Starting timer!")
    game:GetService("ReplicatedStorage").RemoteEventManager.Timer.BeginRound:FireAllClients(600)
    wait(600)
    print("Ending round")
    RemoteEvents.Timer.EndRound:FireAllClients()
    servervalues.AllowedToSpawn = false
    local NewMap = maps[math.random(1,#maps)]
    servervalues.CurrentMap.Value = NewMap
    game:GetService("ServerStorage").MapStorage[NewMap]:Clone().Parent = game.workspace
    for i,v in pairs(game.Workspace:GetChildren()) do
        if v:FindFirstChild("IsAMap") ~= nil then
            v:Destroy()
        end
    end
    for i,v in pairs(game:GetService("Players"):GetChildren()) do
        if v.PlayerValues.Spawned.Value == true then
            v.Character.Humanoid.Health = 0
        end
    end
    wait(3)
end

And yes I did double check everything is in the right location and nothing is outputting errors?

CLIENT

local plr = game:GetService("Players").LocalPlayer
local TimerEvents = game:GetService("ReplicatedStorage").RemoteEventManager.Timer

print("oof startting")
game:GetService("ReplicatedStorage").RemoteEventManager.Timer.BeginRound.OnClientEvent:Connect(function(maptime)
    print("OOOF")
    script.Parent.CountDown.Value = 600
    script.Parent.Text.Text = tostring(script.Parent.CountDown.Value)
    for i = 1,600 do
        wait(1)
        script.Parent.CountDown.Value = script.Parent.CountDown.Value-1
        script.Parent.Text.Text = tostring(script.Parent.CountDown.Value)
    end
end)

Thank you if anyone can help.