Hi! I have set up via Ubuntu 20.xx / Ngnix / Ispconfig 3.1.2., I am in despair because I can not find the setting, so that Letsencrypt issues the certificate. I had already managed once with success, but then deleted the site and set up again and since then it no longer works. I get the error that LetsEncrypt does not find the wwwdotexampledotcom. (www) in DNS. ******** Lets Encrypt Log Error (More see Txt file): DNS problem: NXDOMAIN looking up A for www dot example dot com - check that a DNS record exists for this domain","status": 400 ********** DNS Setting (see below Attachment) Do you have an idea, this must not be a big issue, but do not get on here. Thank you in advance for your tips and recommendations!!