No attribute

[blackPantherOS]

Hi, after when the skill installed, showing in log:

mycroft.skills.event_scheduler:on_error:323 | An error occured executing the scheduled event AttributeError("'AutoVolume' object has no attribute 'meter_thresh_list'")
Traceback (most recent call last):
  File "[...]/mycroft-core_x/mycroft/skills/mycroft_skill/event_container.py", line 109, in wrapper
    handler(message)
  File "/opt/mycroft/skills/auto-volume.andlo/__init__.py", line 126, in mesure_mic_thresh
    self.meter_thresh_list.append(meter_thresh)
AttributeError: 'AutoVolume' object has no attribute 'meter_thresh_list'
~~~~ mycroft.skills.event_scheduler:on_error:323 | An error occured executing the scheduled event AttributeError("'AutoVolume' object has no attribute 'meter_thresh_list'")
Traceback (most recent call last):
  File "[...]/mycroft-core_x/mycroft/skills/mycroft_skill/event_container.py", line 109, in wrapper
    handler(message)
  File "/opt/mycroft/skills/auto-volume.andlo/__init__.py", line 126, in mesure_mic_thresh
    self.meter_thresh_list.append(meter_thresh)
AttributeError: 'AutoVolume' object has no attribute 'meter_thresh_list'