Critical error while processing request: /domain/jellyfin.example.com/actions/cert.cert_.cert_install

What type of hardware are you using: Old laptop or computer
What YunoHost version are you running: 12.1.24
How are you able to access your server: SSH
Are you in a special context or did you perform specific tweaking on your YunoHost instance ?: Using CNAME record instead of A or AAAA (points to a freedns subdomain)

Describe your issue

I was able to get Let’s Encrypt for the main domain and one subdomain of a domain I own, but for the second one (jellyfin.example.com) I get this error. Not sure if it means the certificate install succeeded or failed. What should I do?

Share relevant logs or error messages

Error: “500”

Action: “PUT” /yunohost/api/domain/jellyfin.example.com/actions/cert.cert_.cert_install

Error Message: Critical error while processing request: /domain/jellyfin.example.com/actions/cert.cert_.cert_install

More context:

While processing the action the server said:
[...]
Let's Encrypt certificate now installed for the domain 'jellyfin.example.com'

pastebin: https://paste.yunohost.org/raw/hejumedehu

Thank you for helping me understand.
-P