Certbot failed to authenticate some domains

Help
1

My domain is:oxodj.com

I ran this command: bash emailwiz.sh

It produced this output:

Certbot failed to authenticate some domains (authenticator: standalone). The Certificate Authority reported these problems:
Domain: mail.oxodj.com
Type: unauthorized
Detail: 188.132.198.82: Invalid response from http://mail.oxodj.com/.well-known/acme-challenge/fpqgBTpFpFaKcTIXve8lxPBSvTrkUbLYnNP-vVE05lg: 404

Hint: The Certificate Authority failed to download the challenge files from the temporary standalone webserver started by Certbot on port 80. Ensure that the listed domains point to this machine and that it can accept inbound connections from the internet.

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.
Error locating or installing SSL certificate.

My web server is (include version): VPS

The operating system my web server runs on is (include version): Debian 12.7

My hosting provider, if applicable, is: hostingdunyam.com.tr

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

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

My website is installed on CPanel. I rented a separate VPS server for mail and I am trying to install emailwiz on it. However, after a while it gives the error I mentioned above. What can I do to solve this?

2

I think there's some DNS records missing.

You need to point mail.oxodj.com to your vps.

3

I added A record for mail.oxodj.com by using VPS server IP

4

Edit: my server provider allowed port 80 but the result is the same.

5

I see everything pointing to the same IP address, and I think that's the website IP address.

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6

Oh yes. I was changed the A record but it didnt changed. I solved with my server provider thank you so much

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