EDIT: where are my manners? Thank you for the quick reply!
Fixed the typos somewhat
The error is for an A record with “home” as the subname leading to 0.0.0.0 for testing.
arams:acme:error:dns","title":"","detail":"DNS problem: NXDOMAIN looking up TXT for _acme-challenge.home.example.xyz - check that a DNS record exists for this domain","instance":"","subproblems":[]}}
caddycrowd-1 | {"level":"error","ts":1724311683.8937502,"logger":"tls.issuance.acme.acme_client","msg":"validating authorization","identifier":"*.home.example.xyz","problem":{"type":"urn:ietf:params:acme:error:dns","title":"","detail":"DNS problem: NXDOMAIN looking up TXT for _acme-challenge.home.example.xyz - check that a DNS record exists for this domain","instance":"","subproblems":[]},"order":"https://acme-v02.api.letsencrypt.org/acme/order/1872230987/298410105386","attempt":1,"max_attempts":3}
caddycrowd-1 | {"level":"error","ts":1724311683.8937669,"logger":"tls.obtain","msg":"could not get certificate from issuer","identifier":"*.home.example.xyz","issuer":"acme-v02.api.letsencrypt.org-directory","error":"HTTP 400 urn:ietf:params:acme:error:dns - DNS problem: NXDOMAIN looking up TXT for _acme-challenge.home.example.xyz - check that a DNS record exists for this domain"}
caddycrowd-1 | {"level":"debug","ts":1724311683.893824,"logger":"events","msg":"event","name":"cert_failed","id":"6f3ba113-8cac-4799-92e8-25d0672a1f53","origin":"tls","data":{"error":{},"identifier":"*.home.example.xyz","issuers":["acme-v02.api.letsencrypt.org-directory"],"renewal":false}}
caddycrowd-1 | {"level":"error","ts":1724311683.8938298,"logger":"tls.obtain","msg":"will retry","error":"[*.home.example.xyz] Obtain: [*.home.example.xyz] solving challenge: *.home.example.xyz: [*.home.example.xyz] authorization failed: HTTP 400 urn:ietf:params:acme:error:dns - DNS problem: NXDOMAIN looking up TXT for _acme-challenge.home.example.xyz - check that a DNS record exists for this domain (ca=https://acme-v02.api.letsencrypt.org/directory)","attempt":1,"retrying_in":60,"elapsed":77.047391801,"max_duration":2592000}
caddycrowd-1 | {"level":"info","ts":1724311726.386633,"logger":"tls.obtain","msg":"releasing lock","identifier":"*.home.example.xyz"}
caddycrowd-1 | {"level":"error","ts":1724311726.3877282,"msg":"unable to clean up lock in storage backend","signal":"SIGTERM","storage":"FileStorage:/data/caddy","lock_key":"issue_cert_*.home.example.xyz","error":"remove /data/caddy/locks/issue_cert_wildcard_.home.example.xyz.lock: no such file or directory"}
caddycrowd-1 | {"level":"error","ts":1724311726.3877606,"logger":"tls","msg":"job failed","error":"*.home.example.xyz: obtaining certificate: context canceled"}