Error: Could not issue a Let's Encrypt SSL/TLS certificate

Help
1

My domain is: amaformacion.org
Error en subdominio: aulavirtual.amaformacion.org

I ran this command:Intalar Let's Encrypt SSL/TLS Certificate

It produced this output: Error: Could not issue a Let's Encrypt SSL/TLS certificate for aulavirtual.amaformacion.org . Authorization for the domain failed.

My web server is (include version): 7.1.33

The operating system my web server runs on is (include version): -

My hosting provider, if applicable, is: Gigas

I can login to a root shell on my machine (yes or no, or I don't know): No se

I'm using a control panel to manage my site (no, or provide the name and version of the control panel): Plesk Onyx 17.8.11

The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): -

Mensaje de error:
rror: Could not issue a Let's Encrypt SSL/TLS certificate for aulavirtual.amaformacion.org . Authorization for the domain failed.
Details

Invalid response from https://acme-v02.api.letsencrypt.org/acme/authz-v3/219185156977.
Details:
Type: urn:ietf:params:acme:error:dns
Status: 400
Detail: DNS problem: NXDOMAIN looking up A for aulavirtual.amaformacion.org - check that a DNS record exists for this domain; DNS problem: NXDOMAIN looking up AAAA for aulavirtual.amaformacion.org - check that a DNS record exists for this domain

2

The subdomain aulavirtual does not exist (yet) in the zone for amaformacion.org.

3

Si existe porque está creado.. te envío imagen.

php
php921Ă—349 133 KB

4

No existe.

Both authoritative nameservers agree that it doesn't exist:

nslookup aulavirtual.amaformacion.org d0.org.afilias-nst.org
Name:    aulavirtual.amaformacion.org
Served by:
- ns53.domaincontrol.com
          amaformacion.org
- ns54.domaincontrol.com
          amaformacion.org

nslookup aulavirtual.amaformacion.org ns53.domaincontrol.com
*** UnKnown can't find aulavirtual.amaformacion.org: Non-existent domain

nslookup aulavirtual.amaformacion.org ns54.domaincontrol.com
*** UnKnown can't find aulavirtual.amaformacion.org: Non-existent domain
5

Primero, debe poner el nombre en su DNS, luego existirá.

6

Muchas gracias a todos, ya está solucionado.
Un saludo.