Webostv errors

When i start my configuration i have those error in webostv media_player.

6-12-11 11:47:49 homeassistant.components.media_player: Setting up media_player.webostv
16-12-11 11:47:49 homeassistant.components.media_player: Error while setting up platform webostv
Traceback (most recent call last):
  File "/srv/hass/hass_venv/lib/python3.4/site-packages/homeassistant/helpers/entity_component.py", line 150, in _async_setup_platform
    entity_platform.add_entities, discovery_info
  File "/usr/lib/python3.4/asyncio/futures.py", line 388, in __iter__
    yield self  # This tells Task to wait for completion.
  File "/usr/lib/python3.4/asyncio/tasks.py", line 286, in _wakeup
    value = future.result()
  File "/usr/lib/python3.4/asyncio/futures.py", line 277, in result
    raise self._exception
  File "/usr/lib/python3.4/concurrent/futures/thread.py", line 54, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/srv/hass/hass_venv/lib/python3.4/site-packages/homeassistant/components/media_player/webostv.py", line 84, in setup_platform
    setup_tv(host, name, customize, hass, add_devices)
  File "/srv/hass/hass_venv/lib/python3.4/site-packages/homeassistant/components/media_player/webostv.py", line 92, in setup_tv
    client = WebOsClient(host)
  File "/home/hass/.homeassistant/deps/pylgtv/webos_client.py", line 30, in __init__
  File "/home/hass/.homeassistant/deps/pylgtv/webos_client.py", line 49, in load_key_file
    raw_data = f.read()
  File "/srv/hass/hass_venv/lib/python3.4/codecs.py", line 313, in decode
    (result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xb5 in position 1: invalid start byte

My configurations is this:

# webos LG TV
media_player tv:
  platform: webostv

Using 0.34.4 version
Can someone help me? Is this a HA bug?

Upgraded to last version of HA, same problem.

Have you tried to first power on your TV (leave it for 2 minutes to start everything) and then start/restart HA ? I get loads of errors from webostv when restarting if my TVs are off.

New version of HA 0.38 corrected the problem. Maybe because it reset all config again.