Hey, I’m new to HA. 
I’ve recently installed HA OS 5.13 on a Raspberry Pi 3b following these instructions. I’ve installed core add-ons File editor and Samba share through the Add-on Store UI and both work fine.
I’ve then installed the Duck DNS add-on, modified its Configuration (see below) and saved it.
When trying to start the Duck DNS add-on, I get the following error message:
## Failed to start add-on.
Unknown error, see supervisor
In the Hassio supervisor log, I see the following errors:
21-05-29 20:33:58 ERROR (MainThread) [supervisor.utils.json] Can't write /data/addons/data/core_duckdns/options.json: [Errno 2] No such file or directory: '/data/addons/data/core_duckdns/tmpg38xdz0b'
21-05-29 20:33:58 ERROR (MainThread) [supervisor.addons.addon] Add-on core_duckdns can't write options
Duck DNS configuration (token and domain masked on purpose):
lets_encrypt:
accept_terms: true
certfile: fullchain.pem
keyfile: privkey.pem
token: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx
domains:
- xxxxxx.duckdns.org
aliases: []
seconds: 300
- Core version:
core-2021.5.5 - Supervisor version:
supervisor-2021.04.3
I’ve already tried to:
- Restart HA
- Uninstall the Duck DNS add-on and reinstall it
Any idea what’s going on and how to fix it?
Thanks!