Think I might have a problem with my configuration

HA is functioning normally with no major failures, but I keep seeing this error popping in my logs 30x in a row:

Wed Apr 24 2019 14:59:43 GMT-0500 (Central Daylight Time)
Error handling message: Unauthorized
Traceback (most recent call last):
File “/usr/local/lib/python3.7/site-packages/homeassistant/components/websocket_api/connection.py”, line 76, in async_handle
handler(self.hass, self, schema(msg))
File “/usr/local/lib/python3.7/site-packages/homeassistant/components/websocket_api/commands.py”, line 53, in handle_subscribe_events
raise Unauthorized
homeassistant.exceptions.Unauthorized: Unauthorized

I have absolutely no idea of what HA is trying to access.

All help is greatly appreciated.

Couple of things (none of which is an actual solution, more of some methods of troubleshooting)

  1. Is there any wider context in your logs? Either just before or just after these errors?

  2. One way to diagnose is to comment out bits of your config until it stops, this might give an idea what is causing it.

  3. Also to say that this seems to relate to something using websocket, so concentrate in that direction.