Hi @MarkYacoub
checking your domain - https://check-your-website.server-daten.de/?q=bmteck.org
Why do you want to create a Letsencrypt certificate if there is a new Google-certificate?
CN=www.bmteck.org
28.01.2020
27.04.2020
expires in 88 days www.bmteck.org - 1 entry
that is used?
Where do you run Certbot? On that 216.239.36.21 - ip?
Why answers the non-www, if you use standalone? And why is your Certbot so old?