ha-emporia-vue: 1min sensors unavailable since the backing API change

I updated to 0.6.4, but not everything is working for me yet. I have a Vue Utility connect, and 4 plugs. All of them report the 1 day and 1 month sensor.

I tried uninstalling the integration completely, and reinstalling. That didn’t fix the issue either. I see this in the logs:

This error originated from a custom integration.

Logger: homeassistant
Source: custom_components/emporia_vue/sensor.py:158
Integration: Emporia Vue (documentation)
First occurred: 12:40:21 PM (1 occurrences)
Last logged: 12:40:21 PM

Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 134, in _handle_refresh_interval
    await self._async_refresh(log_failures=True, scheduled=True)
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 265, in _async_refresh
    update_callback()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 325, in _handle_coordinator_update
    self.async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 464, in async_write_ha_state
    self._async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 498, in _async_write_ha_state
    state = self._stringify_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 470, in _stringify_state
    state = self.state
  File "/config/custom_components/emporia_vue/sensor.py", line 91, in state
    return self.scale_usage(usage)
  File "/config/custom_components/emporia_vue/sensor.py", line 158, in scale_usage
    usage = round(usage, 3)
TypeError: type NoneType doesn't define __round__ method

and also:

This error originated from a custom integration.

Logger: homeassistant
Source: custom_components/emporia_vue/sensor.py:150
Integration: Emporia Vue (documentation)
First occurred: 12:40:20 PM (1 occurrences)
Last logged: 12:40:20 PM

Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 134, in _handle_refresh_interval
    await self._async_refresh(log_failures=True, scheduled=True)
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 265, in _async_refresh
    update_callback()
  File "/usr/src/homeassistant/homeassistant/helpers/update_coordinator.py", line 325, in _handle_coordinator_update
    self.async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 464, in async_write_ha_state
    self._async_write_ha_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 498, in _async_write_ha_state
    state = self._stringify_state()
  File "/usr/src/homeassistant/homeassistant/helpers/entity.py", line 470, in _stringify_state
    state = self.state
  File "/config/custom_components/emporia_vue/sensor.py", line 91, in state
    return self.scale_usage(usage)
  File "/config/custom_components/emporia_vue/sensor.py", line 150, in scale_usage
    usage = round(60 * 1000 * usage)  # convert from kwh to w rate
TypeError: unsupported operand type(s) for *: 'int' and 'NoneType'