Let's Debug

Test result for holmes.uk.com using http-01

Error
holmes.uk.com has an A (IPv4) record (92.205.0.183) but a request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address.
Get "http://holmes.uk.com/.well-known/acme-challenge/letsdebug-test": read tcp 172.104.24.29:57454->92.205.0.183:80: read: connection reset by peer

Trace:
@0ms: Making a request to http://holmes.uk.com/.well-known/acme-challenge/letsdebug-test (using initial IP 92.205.0.183)
@0ms: Dialing 92.205.0.183
@192ms: Experienced error: read tcp 172.104.24.29:57454->92.205.0.183:80: read: connection reset by peer
A test authorization for holmes.uk.com to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
92.205.0.183: Fetching http://holmes.uk.com/.well-known/acme-challenge/GgKOs4w2MjjW6fiodQBxFu95UbIyL4m-7l3eiwLc69Q: Connection reset by peer

Submitted Jul 12 16:57:27 2023. Sat in queue for 2ms. Completed in 3s. Show verbose information.