Not booting/loading frontend anymore without changes?

Configuration
1

Hi, I am a bit stressed now as I’ve been trying to learn for several hours now, what suddenly went wrong with my home-assistant installation. It’s not loading the frontend any more.
I have look at the logger and I only get the following:

Blockquote 2018-01-29 00:41:57 WARNING (Recorder) [homeassistant.components.recorder] Ended unfinished session (id=316 from 2018-01-29 00:33:56.204800)
2018-01-29 00:42:26 WARNING (SyncWorker_0) [netdisco.ssdp] Error fetching description at http://192.168.0.254:49152/wps_device.xml
2018-01-29 00:42:28 WARNING (SyncWorker_0) [netdisco.ssdp] Found malformed XML at http://192.168.0.87:9080: status=ok
2018-01-29 00:42:39 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
File “/usr/local/lib/python3.6/asyncio/tasks.py”, line 180, in _step
result = coro.send(None)
File “/usr/src/app/homeassistant/helpers/entity_component.py”, line 399, in async_process_entity
new_entity, self, update_before_add=update_before_add
File “/usr/src/app/homeassistant/helpers/entity_component.py”, line 247, in async_add_entity
yield from entity.async_update_ha_state()
File “/usr/src/app/homeassistant/helpers/entity.py”, line 217, in async_update_ha_state
attr = self.state_attributes or {}
File “/usr/src/app/homeassistant/components/media_player/init.py”, line 875, in state_attributes
in ATTR_TO_PROPERTY if getattr(self, attr) is not None
File “/usr/src/app/homeassistant/components/media_player/init.py”, line 875, in
in ATTR_TO_PROPERTY if getattr(self, attr) is not None
File “/usr/src/app/homeassistant/components/media_player/sonos.py”, line 988, in source_list
return self._coordinator.source_list
File “/usr/src/app/homeassistant/components/media_player/sonos.py”, line 990, in source_list
model_name = self._speaker_info[‘model_name’]
TypeError: ‘NoneType’ object is not subscriptable
2018-01-29 00:42:39 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
File “/usr/local/lib/python3.6/asyncio/tasks.py”, line 180, in _step
result = coro.send(None)
File “/usr/src/app/homeassistant/helpers/entity.py”, line 217, in async_update_ha_state
attr = self.state_attributes or {}
File “/usr/src/app/homeassistant/components/media_player/init.py”, line 875, in state_attributes
in ATTR_TO_PROPERTY if getattr(self, attr) is not None
File “/usr/src/app/homeassistant/components/media_player/init.py”, line 875, in
in ATTR_TO_PROPERTY if getattr(self, attr) is not None
File “/usr/src/app/homeassistant/components/media_player/sonos.py”, line 988, in source_list
return self._coordinator.source_list
File “/usr/src/app/homeassistant/components/media_player/sonos.py”, line 990, in source_list
model_name = self._speaker_info[‘model_name’]
TypeError: ‘NoneType’ object is not subscriptable
2018-01-29 00:42:39 ERROR (MainThread) [homeassistant.core] Error doing job: Task exception was never retrieved
Traceback (most recent call last):
File “/usr/local/lib/python3.6/asyncio/tasks.py”, line 180, in _step
result = coro.send(None)
File “/usr/src/app/homeassistant/helpers/entity_component.py”, line 399, in async_process_entity
new_entity, self, update_before_add=update_before_add
File “/usr/src/app/homeassistant/helpers/entity_component.py”, line 247, in async_add_entity
yield from entity.async_update_ha_state()
File “/usr/src/app/homeassistant/helpers/entity.py”, line 217, in async_update_ha_state
attr = self.state_attributes or {}
File “/usr/src/app/homeassistant/components/media_player/init.py”, line 875, in state_attributes
in ATTR_TO_PROPERTY if getattr(self, attr) is not None
File “/usr/src/app/homeassistant/components/media_player/init.py”, line 875, in
in ATTR_TO_PROPERTY if getattr(self, attr) is not None
File “/usr/src/app/homeassistant/components/media_player/sonos.py”, line 988, in source_list
return self._coordinator.source_list
File “/usr/src/app/homeassistant/components/media_player/sonos.py”, line 990, in source_list
model_name = self._speaker_info[‘model_name’]
TypeError: ‘NoneType’ object is not subscriptable
2018-01-29 00:42:43 WARNING (SyncWorker_4) [homeassistant.components.zwave] zwave not ready after 30 seconds, continuing anyway
2018-01-29 00:42:45 WARNING (MainThread) [homeassistant.components.media_player] Setup of platform cast is taking over 10 seconds.

I cannot see anything critical there. Can someone help me??Thanks!

2

When you say ‘not loading’…

Browser shows connection refused?

Browser never gets any page and just is white forever?

Browser shows blue bar with endless spinning circle?

Browser shows login screen with ‘failed to connect’ message below password box?

Something different?

3

Sorry for not have been more specific. From your options what it exactly does is:
Browser shows login screen with ‘UNABLE TO CONNECT’ message below password box.

4

As I have no errors in the log I guess is something to do with my Let’s Encrypt certificate. I’m going to try to solve it. Thank you.

5

Ok, problem solved. My Lets Encrypt certificate did renew automatically but as it was a xxxx.synology.me certificate, it was at my synology control panel and I’ve had to export it to my homeassistant folder, everything is working find again now. Thank you.