Player list Only updating for a single client?

So, I'm trying to find a solution to this, see, I want the background color to be changed, when a value is equal to a certain string, it does work for ONE client, and as of now I'm getting a single error.

--CLIENT
    if Player.PlayerData.House.Value == ('Arryn') then
                    Remote:FireServer('Arryn')

                 Remote.OnClientEvent:connect(function(request)
                if request == ('Arryn') then
                v.Parent[Player.userId].BackgroundColor3 = Color3.new(unpack(Colors['Arryn']))

                    end
                end)
    --SERVER
local Remote = game:FindFirstChild('ReplicatedStorage'):WaitForChild('LeaderUpdate')
game.Players.PlayerAdded:connect(function(player)

        Remote.OnServerEvent:connect(function(player, request, ...)

            if request == ('Arryn') then

                Remote:FireAllClients(request)
            end
        end)


end)

the error is.

Remote event invocation queue exhausted for ReplicatedStorage.LeaderUpdate; did you forget to implement OnClientEvent? (x300)

Please help me her, and explain how it's not working, and where the problem is, thank you!