Unable to update challenge :: authorization must be pending error

A few days ago I received an email message regarding the update of a website SSL certificate.
The error showed up because, there was a firewall rule that was denying access to port 80 and 443.
I updated the firewall rule so as to allow all traffic, and now I’m trying to manually renew the certificate.
With the Hestia CLI, I’ve run sudo bash v-update-letsencrypt-ssl command but certificate is not being renewed.
Checked both /var/log/hestia/system.log and /var/log/hestia/LE-USER-DOMAIN.TLD.log but nothing is being logged…
Am I missing something?

Any idea @eris ?