DuckDNS addon - not updating IP ("KO" in the log)

DuckDNS addon is not updating IP. Output from the log is:

Sat Mar 23 10:09:37 CET 2019: KO

DuckDNS addon configuration:
Note that I intentionally don’t want DuckDNS to generate SSL certificate. I have valid cert already generated by Let’s Encrypt addon and placed in default /ssl/
Anyway, certs are not the point here, just updating the IP address of DuckDNS domain.

{
  "lets_encrypt": {
    "accept_terms": false,
    "certfile": "fullchain.pem",
    "keyfile": "privkey.pem"
  },
  "token": "SECRET-DUCKDNS-TOKEN",
  "domains": [
    "ABC-MY-DOMAIN.duckdns.org"
  ],
  "seconds": 300
}

I have also setup http: in Home Assistant configuration.yaml as below, although I’m not sure if it’s relevant for updating IP:

http:
  base_url: https://ABC-MY-DOMAIN.duckdns.org:8123
  ssl_certificate: /ssl/fullchain.pem
  ssl_key: /ssl/privkey.pem

Anyone encountered such problem?
I had no issues at all with duckdns script running on Hassbian, before migrating to hassio.

Turns out it was an issue with DuckDNS account. My domain got disabled or something. On DuckDNS webpage I noticed “transfer domain” button that appeared. After clicking that it started working. DuckDNS addon in Home Assistant is now updating IP correctly, with the same configuration I
mentioned earlier.
Output from the log now is:

Sat Mar 23 10:34:16 CET 2019: OK
XX.XXX.XX.XX
UPDATED

Maybe this will help someone with similar problem :slight_smile: