How to resolve error to get SSL certificate using Letsencrypt certbot?

Using certbot from Let’sEncrypt, I couldn’t manage to create secure access for tleis.nl, but if I copy the site into chess.tleis.nl, then secure access is done without problems. But I still cannot get secure access for the base domain tleis.nl. I have the following: OS: Ubuntu server 18.04 Nginx: 1.15.5 my website at /var/www/tleis.nl FILE:…

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