HomeAssistant SSL error filling up logs

My home assistant logs are filling up with the following error:

Feb 29 09:56:59 hassbian hass[19211]: 2020-02-29 09:56:59 ERROR (MainThread) [homeassistant.core] Error doing job: SSL error in data received
Feb 29 09:56:59 hassbian hass[19211]: Traceback (most recent call last):
Feb 29 09:56:59 hassbian hass[19211]:   File "/usr/lib/python3.7/asyncio/sslproto.py", line 526, in data_received
Feb 29 09:56:59 hassbian hass[19211]:     ssldata, appdata = self._sslpipe.feed_ssldata(data)
Feb 29 09:56:59 hassbian hass[19211]:   File "/usr/lib/python3.7/asyncio/sslproto.py", line 189, in feed_ssldata
Feb 29 09:56:59 hassbian hass[19211]:     self._sslobj.do_handshake()
Feb 29 09:56:59 hassbian hass[19211]:   File "/usr/lib/python3.7/ssl.py", line 763, in do_handshake
Feb 29 09:56:59 hassbian hass[19211]:     self._sslobj.do_handshake()
Feb 29 09:56:59 hassbian hass[19211]: ssl.SSLError: [SSL: SSLV3_ALERT_CERTIFICATE_UNKNOWN] sslv3 alert certificate unknown (_ssl.c:1056)

I am using the following in my configuration.yaml file:

http:
  ssl_certificate: /home/homeassistant/.homeassistant/cert.pem
  ssl_key: /home/homeassistant/.homeassistant/privatekey.pem

I have tried:

  • Recreating my cert and privkey, even though the cert was not expired
  • Chown and chmod on cert and privkey to make sure permissions are correct
  • Deleting all old refresh tokens on Web Interface…I noticed there were several
  • Adding ssl_profile: intermediate under http:
  • Updated from 0.103.2 to 0.106.2

I am not sure what else could be the issue. Is anyone else seeing this issue or know how to fix it?