Detail: 2800:6c0:2::278: Invalid response from https://fielloequipos.com.ar/.well-known/acme-challenge/iqFrlqQNDsRBfUuZJkJA9s0-TJC0q5hw7zbKnR9OfgE: 404

[german]

Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. crt.sh | example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.

My domain is: fielloequipos.com.ar

I ran this command: sudo certbot certonly --manual --key-type rsa

It produced this output: Certbot failed to authenticate some domains (authenticator: manual). The Certificate Authority reported these problems:
Domain: fielloequipos.com.ar
Type: unauthorized
Detail: 2800:6c0:2::278: Invalid response from https://fielloequipos.com.ar/.well-known/acme-challenge/iqFrlqQNDsRBfUuZJkJA9s0-TJC0q5hw7zbKnR9OfgE: 404

Hint: The Certificate Authority failed to verify the manually created challenge files. Ensure that you created these in the correct location.

Some challenges have failed.
Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.

My web server is (include version): donweb.com

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

My hosting provider, if applicable, is: donweb.com

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

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

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

[MikeMcQ]

Welcome to the community @german

The "404" in the error message is an http "Not Found". It means the Let's Encrypt server sent its HTTP Challenge to your domain but your Apache server said it did not have the required data.

The --manual step should have told you what you needed to do. You must not have done everything correctly.

Was there some reason you used --manual method? Because a cert renewal cannot be automated without making a hook script. That can get complicated.

Better would be to use --apache or --webroot methods which can automate easily.

What does this show: sudo certbot --version

You may need to review the Certbot install instructions to add the --apache plugin depending on what system you have and what Certbot version. You did not give the details of those.

Certbot