Welcome to the community @esromerom
First, your certonly command is missing the webroot path - usually like this before the -d
-w /yourserver/root/path
See:
https://eff-certbot.readthedocs.io/en/stable/using.html#webroot
Your DNS points to 163.172.81.191 so you should check that is correct.
When I try connecting to your server I get the same "connection reset by peer" as shown in your error message from certbot. So, something is preventing connection.
curl -I wirepas.insolem.fr
curl: (56) Recv failure: Connection reset by peer
Can also test connection with Lets Debug
Note right now Lets Encrypt is having some service problems but this does not cause your connection problems from Lets Debug or a curl from my test machine.