Issue in log, how to understand?

Hello
I have this in log:

2018-07-28 11:49:05 WARNING (MainThread) [homeassistant.setup] Setup of config is taking over 10 seconds.
2018-07-28 11:49:47 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.py", line 279, in async_update_ha_state
    self.entity_id, state, attr, self.force_update)
  File "/usr/local/lib/python3.6/site-packages/homeassistant/core.py", line 774, in async_set
    state = State(entity_id, new_state, attributes, last_changed)
  File "/usr/local/lib/python3.6/site-packages/homeassistant/core.py", line 564, in __init__
    "Format should be <domain>.<object_id>").format(entity_id))
homeassistant.exceptions.InvalidEntityFormatError: Invalid entity id encountered: zone.. Format should be <domain>.<object_id>
2018-07-28 11:49:55 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-07-28 11:49:59 ERROR (MainThread) [homeassistant.core] Timer got out of sync. Resetting
2018-07-28 12:18:54 ERROR (SyncWorker_5) [homeassistant.core] Error doing job: Task was destroyed but it is pending!
2018-07-28 12:39:17 ERROR (MainThread) [homeassistant.core] Error doing job: Task was destroyed but it is pending!

I understood only that there is something wrong with locations, but it seems to be ok
And I often get “Task was destroyed but it’s pending” with nothing else, so again, have no idea what’s wrong

Also got the error “Error doing job: Task was destroyed but it is pending!” again since upgrading to 0.75.3…