Saving debug log to /var/log/letsencrypt/letsencrypt.log

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Processing /etc/letsencrypt/renewal/auth.hyeonworks.com.conf
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Simulating renewal of an existing certificate for auth.hyeonworks.com and 2 more domains
Waiting 30 seconds for DNS changes to propagate

Certbot failed to authenticate some domains (authenticator: dns-cloudflare). The Certificate Authority reported these problems:
  Domain: auth.hyeonworks.com
  Type:   dns
  Detail: During secondary validation: DNS problem: NXDOMAIN looking up TXT for _acme-challenge.auth.hyeonworks.com - check that a DNS record exists for this domain

Hint: The Certificate Authority failed to verify the DNS TXT records created by --dns-cloudflare. Ensure the above domains are hosted by this DNS provider, or try increasing --dns-cloudflare-propagation-seconds (currently 30 seconds).

Failed to renew certificate auth.hyeonworks.com with error: Some challenges have failed.

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All simulated renewals failed. The following certificates could not be renewed:
  /etc/letsencrypt/live/auth.hyeonworks.com/fullchain.pem (failure)
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1 renew failure(s), 0 parse failure(s)
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.
