Fix: trap expected errors
Fix: trap expected errors

Ranch listener :elixoids_http had connection process started with :cowboy_clear:start_link/4 at #PID<0.337.0> exit with reason: {:function_clause, [{Elixoids.Server.WebsocketShipHandler, :terminate, [{:crash, :error, {:with_clause, {:error, {:already_started, #PID<0.263.0>}}}}, %{host: "localhost", method: "GET", path: "/0/ship/MOG", peer: {{127, 0, 0, 1}, 54816}, port: 8065, qs: "", scheme: "http", version: :"HTTP/1.1"}, %{game_id: "0", url_tag: "MOG"}]

Ranch listener :elixoids_http had connection process started with :cowboy_clear:start_link/4 at #PID<0.609.0> exit with reason: {{:with_clause, {:error, {:already_started, #PID<0.495.0>}}}, [{Elixoids.Server.WebsocketShipHandler, :websocket_init, 1, [file: 'lib/elixoids/server/websocket_ship_handler.ex', line: 25]}

devstopfix/elixoids,devstopfix/elixoids,devstopfix/elixoids,devstopfix/elixoids,devstopfix/elixoids