scviper.asuscomm.com has an A (IPv4) record (188.25.160.26) 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://scviper.asuscomm.com/.well-known/acme-challenge/letsdebug-test": dial tcp 188.25.160.26:80: connect: connection refused
Trace:
@0ms: Making a request to http://scviper.asuscomm.com/.well-known/acme-challenge/letsdebug-test (using initial IP 188.25.160.26)
@0ms: Dialing 188.25.160.26
@117ms: Experienced error: dial tcp 188.25.160.26:80: connect: connection refused
A test authorization for scviper.asuscomm.com to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://scviper.asuscomm.com/.well-known/acme-challenge/iTTHH9hsYgOZ_YEaSPfUxuHIEIbKHcI4vsk-LA1n8Q0: Connection refused
scviper.asuscomm.com is currently affected by Let's Encrypt-based rate limits (https://letsencrypt.org/docs/rate-limits/). You may review certificates that have already been issued by visiting https://crt.sh/?q=%asuscomm.com . Please note that it is not possible to ask for a rate limit to be manually cleared.
The 'Certificates per Registered Domain' limit (50 certificates per week that share the same Registered Domain: asuscomm.com) has been exceeded. There is no way to work around this rate limit. The next non-renewal certificate for this Registered Domain should be issuable after 2022-04-19 13:47:56 +0000 UTC (0s from now).