Remote event not firing for some reason?

So I was making my own chat and bubble chat system and I tried to use remote event to fire when the player talks. However, the remote event did not fire and it didn't show anything on the server and client. I did try to search on how to fix it but none of these answers seemed to work for me. Feel free to ask any questions.

ServerScriptService script:

game.ReplicatedFirst.ChatMessage.OnServerEvent:Connect(function(p, msg)
    local ChatGUI = p.Character:WaitForChild("BubbleChatUI")
    spawn(function()
        while wait(1) do
            Timer = Timer - 1
            if Timer < 0  then
                Timer = 0
                ChatGUI.Enabled = false
            end
        end
    end)
    print("Chat message detected.")
    msg = game:GetService("Chat"):FilterStringForBroadcast(msg, p)
    ChatGUI.Enabled = true
    local val = Instance.new("StringValue", workspace.chatMessages)
    val.Name = p.Name
    val.Value = msg
    ChatGUI.MessageLabel.TextLabel.Text = msg
    Timer = 4
end)

TextBox localscript:

script.Parent.FocusLost:Connect(function(EnterPressed)
    if EnterPressed then
        game.ReplicatedFirst:WaitForChild("Events").ChatMessage:FireServer(script.Parent.Text)
        script.Parent.Text = ""
    end
end)