FireClient() error local 12:14:16.314 - FireClient: player argument must be a Player object help??

i made a tool that will change part position, tried to do it with fireserver() but it wont change so i do with FireClient() but i got this?

"12:14:16.314 - FireClient: player argument must be a Player object"

help script:

local tool = script.Parent
local player = game:GetService("Players")
script.Parent.Activated:Connect(function(plr)
	script.Parent.RemoteEvent:FireClient(plr)
end)

local script:

script.Parent.OnClientEvent:Connect(function(plr)
	script.Parent.Parent.Handle.Position = script.Parent.Parent.Part1.Position
	script.Parent.Parent.Part1.Transparency = 1
end)

You should be changing the part position on the SERVER, not the client. Do this instead:

Local script:

local tool = script.Parent
local player = game:GetService("Players")
script.Parent.Activated:Connect(function()
    script.Parent.RemoteEvent:FireServer()
end)

Server Script:

script.Parent.OnServerEvent:Connect(function(plr)
    plr.Backpack:WaitForChild("Tool").Handle.Position = plr.Backpack:WaitForChild("Tool").Part1.Position
    plr.Backpack:WaitForChild("Tool").Part1.Transparency = 1
end)

--IMPORTANT: Replace tool with the name of the tool