Asqatasun V5 Installation

Hello everyone,
While trying to install the V5 on Ubuntu18, I followed the documentation, so I managed to launch the webapp and api services. But on the apache frontend (which is not updated yet) I’m having a problem with the certbot certificate. here’s the error I’m having :

Certbot failed to authenticate some domains (authenticator: apache). The Certificate Authority reported these problems:
  Type:   dns
  Detail: DNS problem: NXDOMAIN looking up A for - check that a DNS record exists for this domain

Hint: The Certificate Authority failed to verify the temporary Apache configuration changes made by Certbot. Ensure that the listed domains point to this Apache server and that it is accessible from the internet.

Thought maybe there’s a different configuration.
Thank you