Challenge update failures for srimuang.ddns.net in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/3812434394
acme: error code 400 "urn:ietf:params:acme:error:dns": DNS problem: NXDOMAIN looking up TXT for _acme-challenge.srimuang.ddns.net - check that a DNS record exists for this domain