All lights turn off when I restart homeassistant

From the last update to 0.83 I am facing a strange issue. When I restart homeassistant docker (I am on hass.io) all my lights turn off. A bit annoying if I am working on it at evening and someone in the house is reading in their bed. I am only catching this error in the log about the group al_lights

2018-11-29 23:32:47 INFO (MainThread) [homeassistant.setup] Setup of domain notify took 3.9 seconds.
2018-11-29 23:32:47 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/homeassistant/helpers/entity_platform.py", line 343, in _async_add_entity
    raise HomeAssistantError(msg)
homeassistant.exceptions.HomeAssistantError: Entity id already exists: group.all_lights
2018-11-29 23:32:47 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/homeassistant/helpers/entity_platform.py", line 343, in _async_add_entity
    raise HomeAssistantError(msg)
homeassistant.exceptions.HomeAssistantError: Entity id already exists: group.all_lights
2018-11-29 23:32:47 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/homeassistant/helpers/entity_platform.py", line 343, in _async_add_entity
    raise HomeAssistantError(msg)
homeassistant.exceptions.HomeAssistantError: Entity id already exists: group.all_lights
2018-11-29 23:32:47 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/homeassistant/helpers/entity_platform.py", line 343, in _async_add_entity
    raise HomeAssistantError(msg)
homeassistant.exceptions.HomeAssistantError: Entity id already exists: group.all_lights
2018-11-29 23:32:47 INFO (MainThread) [homeassistant.setup] Setup of domain light took 0.7 seconds.

Have you defined a group all_lights manually?

No, I never did that.
I use group.all_lights in some automation but I have never defined it manually.