Expired certificate- need to renew

Hello everyone, my certificate expired so is there any way I can renew it ?
I’m using ubuntu 16.04 server
Apache web server.
I installed the certificate using certbot-auto

certbot-auto renew should do the job.

I tried the command but it says

DNS problem: NXDOMAIN looking up A for the domain name

do you know how fix this ?

Fix your DNS records. If you'll share your domain name, the specifics of the problem might be clearer.

You don’t appear to have DNS records set up for this domain. That would prevent issuance of the cert.

ok thank you very much

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