[SOLVED]Calling client from server works in studio, But not in the actual server?

I know about filtering enabled and I've done most of this right, But for some reason whenever I call a remote event/function from the server to the client, It works in studio but when I go into the server and do the same thing, It says that it has to be a player object.

local Players = game:GetService("Players"):FindFirstChild(Tool.Parent.Name)

script.Parent.Equipped:Connect(function()
    Equipped = true
    game.ReplicatedStorage.ChangeCursor:FireClient(Player, "1776629404")

end)

I've tried using playerfromcharacter, Just getting the name. It still didn't work.