Challenge with Serving Static files

Hello guys ,
I have set up some project , but I have som e bit of challenge with serving static files with the plug module

23:03:44.817 [debug] GET /home
 
23:03:44.817 [debug] Sent 200 in 32µs
 
23:03:44.849 [debug] GET /priv/js/test.js
 
*23:03:44.849 [debug] Sent 404 in 24µs*
==============================
Routes :
plug(Plug.Logger, log: :debug)
	plug :match
	plug :dispatch
	plug Plug.Static, at: "/home", from: :server, only: ~w(js css images robots.txt)

	get "/" do
		send_resp(conn, 200, "Hello There!")
	end

	get "/about/:user_name" do
		send_resp(conn, 200, "Hello, #{user_name}")
	end

	get "/home" do
		conn = put_resp_content_type(conn, "text/html")
		send_file(conn, 200, "priv/index.html")
	end

I need some guidance on what , I be doing wrong , your assistance will be much appreciated