how fix error: DNS problem: SERVFAIL looking up A for [domain]

the same error:

IMPORTANT NOTES:

• The following errors were reported by the server:

  Domain: juancarlosmx.xyz Type: connection Detail: DNS problem: SERVFAIL looking up A for juancarlosmx.xyz

  Domain: www.juancarlosmx.xyz Type: connection Detail: DNS problem: SERVFAIL looking up CAA for juancarlosmx.xyz

  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. Additionally, please check that your computer has a publicly routable IP address and that no firewalls are preventing the server from communicating with the client. If you’re using the webroot plugin, you should also verify that you are serving files from the webroot path you provided.

///////////////////////// **In my domain record is: **

• type: A
• Hostname: www.juancarlosmx.xyz
• Value: 45.55.79.187

the command is: /usr/local/letsencrypt# sudo ./letsencrypt-auto --apache -d www.juancarlosmx.xyz -d juancarlosmx.xyz

**How fix error? **