The domain mvt.ar 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 domain mvt.ar is being served through Cloudflare CDN and a certificate has not yet been provisioned yet by Cloudflare.
https://support.cloudflare.com/hc/en-us/articles/203045244-How-long-does-it-take-for-Cloudflare-s-SSL-to-activate-
Challenge update failures for mvt.ar in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/6507158923
acme: error code 400 "urn:ietf:params:acme:error:dns": DNS problem: NXDOMAIN looking up TXT for _acme-challenge.mvt.ar - check that a DNS record exists for this domain
The IANA public suffix is the TLD of the Registered Domain
The TLD for mvt.ar is: ar
1 Certificates contributing to rate limits for this domain
Serial: 331592157702071277119750053026450103171809
NotBefore: 2023-01-10 22:55:49 +0000 UTC
Names: [*.mvt.ar mvt.ar]
The current status.io status for Let's Encrypt
Operational