Hey @stefanino, I have been having the exact same experience the past few days. It seems the letsencrypt step of the installation is failing somehow. I have ruled out hitting any caps with letsencrypt, as I am getting the same results on a different domain. I have also tested both the github install instructions as well as a digital ocean 1-click, both failing with the same ssl error.
The installation succeeds if I disable ssl, via: