ISPConfig update via ispconfig_update.sh and the SSL certificate reissue

Hello Community,
I was wondering when I do:

Code:

#ispconfig_update.sh

It prompts towards:

If ISPConfig had previously self-signed certificate (due to LE issuance failure on initial setup), would answering YES to this attempt again to issue a LE certificate?

 

I just tried to re-run the script (ispconfig_update.sh --force) but it fails and logs nothing into: /root/.acme.sh/acme.sh.log
(as per LE FAQ: https://www.howtoforge.com/community/threads/lets-encrypt-error-faq.74179/ )
The output:

I removed the string in [removed]-[removed] and masked the time.

The contents of root@server1:~/.acme.sh# ls

There is DNS record to server1.example.com and it has been active for months.

It's a clean installation done today using "Perfect Server Automated ISPConfig 3 Installation on Debian 10 and Ubuntu 20.04", in my case it was Ubuntu 20.04. The previous installation on this server was running Debian 9 (which was wiped clean). I was previously using self-signed certificate so there should not be a collision.

Any ideas what to check next?

Thank you very much in advance.

 

I really would like to solve this - anyone any ideas how to fix this or at least debug this?

 

There should be installer log as well. Are your server in any way behind a router?