Attempt to index local 'players' (a nil value)?

So I want to make a hat remover script when you spawn so I have this script but I get a

Workspace.Script:6: attempt to index local 'players' (a nil value) error

function PlayerRespawned(Player)
	local players = game.Workspace:FindFirstChild(Player)
	wait(1)
	print('hi')
	print(Player)
	local d = players:GetChildren() -- start of hat remover
	for i=1, #d do 
		if (d[i].className == "Hat") then 
			d[i]:remove() 
			print('hat removed')
		end 
	end	-- end of hat remover
end