The domain clonimi.com is being served through Cloudflare CDN. Any Let's Encrypt certificate installed on the origin server will only encrypt traffic between the server and Cloudflare. It is strongly recommended that the SSL option 'Full SSL (strict)' be enabled.
https://support.cloudflare.com/hc/en-us/articles/200170416-What-do-the-SSL-options-mean-
The current status as reported by the Let's Encrypt status page is Degraded Performance as at 2023-03-01 07:56:09.192 +0000 UTC. Depending on the reported problem, this may affect certificate issuance. For more information, please visit the status page.
https://letsencrypt.status.io/
An internal error occurred while checking the domain
Failed to query certwatch database to check rate limits: context deadline exceeded
Challenge update failures for clonimi.com in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/7498253233
acme: error code 400 "urn:ietf:params:acme:error:dns": DNS problem: NXDOMAIN looking up TXT for _acme-challenge.clonimi.com - check that a DNS record exists for this domain
The IANA public suffix is the TLD of the Registered Domain
The TLD for clonimi.com is: com
The current status.io status for Let's Encrypt
Degraded Performance