"No TXT record found at _acme-challenge" ERROR when creating Let's Encrypt Wildcard SSL

| SYSTEM INFORMATION||
|------------------------------|-------------------------------|
| OS type and version | Ubuntu 20.0.4 |
| Webmin version | 2.101 |
| Virtualmin version | 7.7 |
| Related packages | SSL Setting |

Hello

I’m trying to install Wildcard SSL Certficat from Virtualmin Dashbord.
And even if, when I try it on SSH Terminal, by launching the following certbot command:

certbot certonly --manual --preferred-challenges=dns --email admin@ourdomain.com --server https://acme-v02.api.letsencrypt.org/directory --agree-tos -d ourdomain.com -d *.ourdomain.com

I get the following error:

Press Enter to Continue
Waiting for verification…
Challenge failed for domain ourdomain.com
dns-01 challenge for ourdomain.com
Cleaning up challenges
Some challenges have failed.

IMPORTANT NOTES:

  • The following errors were reported by the server:

    Domain: ourdomain.com
    Type: unauthorized
    Detail: No TXT record found at _acme-challenge.ourdomain.com

    To fix these errors, please make sure that your domain name was
    entered correctly and the DNS A/AAAA record(s) for that domain
    contain(s) the right IP address.
    root@host:~#

Please What is wrong with my “Wildcard SSL Certificat” and how to fix it please ???

I found it. The data has been generated before putting on Enter keyboard. Thanks

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