Update HA 0.81.5 Error

After I updated to the latest version, I get the following error message:

2018-11-03 19:42:25 ERROR (MainThread) [hole] Can not load data from *hole: 10.1.1.35
2018-11-03 19:42:25 ERROR (MainThread) [homeassistant.components.sensor.pi_hole] Unable to fetch data from Pi-hole
2018-11-03 19:42:25 ERROR (MainThread) [homeassistant.components.sensor] cpuspeed: Error on device update!
Traceback (most recent call last):
  File "/srv/homeassistant/lib/python3.5/site-packages/homeassistant/helpers/entity_platform.py", line 251, in _async_add_entity
    await entity.async_device_update(warning=False)
  File "/srv/homeassistant/lib/python3.5/site-packages/homeassistant/helpers/entity.py", line 349, in async_device_update
    await self.hass.async_add_executor_job(self.update)
  File "/usr/lib/python3.5/asyncio/futures.py", line 380, in __iter__
    yield self  # This tells Task to wait for completion.
  File "/usr/lib/python3.5/asyncio/tasks.py", line 304, in _wakeup
    future.result()
  File "/usr/lib/python3.5/asyncio/futures.py", line 293, in result
    raise self._exception
  File "/usr/lib/python3.5/concurrent/futures/thread.py", line 55, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/srv/homeassistant/lib/python3.5/site-packages/homeassistant/components/sensor/cpuspeed.py", line 85, in update
    self._state = round(float(self.info['hz_actual_raw'][0])/10**9, 2)
KeyError: 'hz_actual_raw'
Setup of platform mqtt is taking over 10 seconds.
19:42 util/async_.py (WARNING)
Setup of platform systemmonitor is taking over 10 seconds.
19:42 util/async_.py (WARNING)
Setup of platform ping is taking over 10 seconds.
19:42 util/async_.py (WARNING)
cpuspeed: Error on device update!
19:42 components/sensor/cpuspeed.py (ERROR)
Unable to fetch data from Pi-hole
19:42 components/sensor/pi_hole.py (ERROR)
Can not load data from *hole: 10.1.1.35
19:42 util/async_.py (ERROR)

How can I fix this errors?

Update to HA 0.81.6 - Error is still present.

sudo tail -f home-assistant.log
    yield self  # This tells Task to wait for completion.
  File "/usr/lib/python3.5/asyncio/tasks.py", line 304, in _wakeup
    future.result()
  File "/usr/lib/python3.5/asyncio/futures.py", line 293, in result
    raise self._exception
  File "/usr/lib/python3.5/concurrent/futures/thread.py", line 55, in run
    result = self.fn(*self.args, **self.kwargs)
  File "/srv/homeassistant/lib/python3.5/site-packages/homeassistant/components/sensor/cpuspeed.py", line 85, in update
    self._state = round(float(self.info['hz_actual_raw'][0])/10**9, 2)
KeyError: 'hz_actual_raw'