Also, some of these errors look like they’re related to client certificate authentication (in which your web browser tries to present a certificate to the server). Is it possible that you obtained a Let’s Encrypt certificate and then mistakenly installed it into your web browser instead of your web server? Let’s Encrypt certificates are meant to be installed on servers.
[root@php letsencrypt]# ./letsencrypt-auto --apache -d phpanunzia.anunzia.com/phpMyAdmin
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator apache, Installer apache
Obtaining a new certificate
An unexpected error occurred:
The request message was malformed :: Error creating new order :: Invalid character in DNS name
Please see the logfiles in /var/log/letsencrypt for more details.
You have new mail in /var/spool/mail/root
[root@php letsencrypt]#