16:29:08.624 - ServerScriptService.Script:31: attempt to index nil with 'Name'?

So i wanna make a tp command(from an alvin blox video)

but it say this : 16:29:08.624 - ServerScriptService.Script:31: attempt to index nil with 'Name'

the code :

local commands = {}

local admins = {"m6xw"}

local prefix = "?"

local function findPlayer(name)
	
	for _, player in pairs(game.Players:GetPlayers()) do
		if string.lower(player.Name) == name then
			return player
		end
	end
	
	return nil
	
end

local function isAdmin(player)
	for _, v in pairs(admins) do
		if v == player.Name then
			return true
		end
	end
	
	return false
end

commands.tp = function(sender, arguments)
	
	print("TP function fired by "..sender.Name)
	
	for _, playerName in pairs(arguments) do
		print(playerName)
	end
	
	local playerToTeleportName = arguments[1]
	local playerToTeleportToName = arguments[2]
	
	if playerToTeleportName and playerToTeleportToName then
		local playerToTP = findPlayer(playerToTeleportName)
		local playerToTPTo = findPlayer(playerToTeleportToName)
		
		if playerToTP and playerToTPTo then
			playerToTP.Character.HumanoidRootPart.CFrame = playerToTPTo.Character.HumanoidRootPart.CFrame
			print("Moved successfully")
		end
		
	end
	
end

game.Players.PlayerAdded:Connect(function(player)
	player.Chatted:Connect(function(message,recipient)
		message = string.lower(message)
		
		if isAdmin(player) then
		
		local splitString = message:split(" ")
		
		local slashCommand = splitString[1]
		
		local cmd = slashCommand:split(prefix)
		
		local cmdName = cmd[2]
		
		if commands[cmdName] then
			
			local arguments = {}
			
			for i = 2, #splitString, 1 do
				table.insert(arguments,splitString[i])
			end
			
				commands[cmdName]()
				
	        end
		end
		
	end)
end)