dev.dagoutime.com has an AAAA (IPv6) record (2400:8902::f03c:91ff:fe39:fd2c) but a test request to this address over port 80 did not succeed. Your web server must have at least one working IPv4 or IPv6 address. You should either ensure that validation requests to this domain succeed over IPv6, or remove its AAAA record.
Get http://dev.dagoutime.com/.well-known/acme-challenge/letsdebug-test: dial tcp [2400:8902::f03c:91ff:fe39:fd2c]:80: connect: connection refused
Trace:
@0ms: Making a request to http://dev.dagoutime.com/.well-known/acme-challenge/letsdebug-test (using initial IP 2400:8902::f03c:91ff:fe39:fd2c)
@0ms: Dialing 2400:8902::f03c:91ff:fe39:fd2c
@168ms: Experienced error: dial tcp [2400:8902::f03c:91ff:fe39:fd2c]:80: connect: connection refused
dev.dagoutime.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=%dagoutime.com . Please note that it is not possible to ask for a rate limit to be manually cleared.
The Duplicate Certificate limit (5 certificates with the exact same set of domains per week) has been exceeded and is affecting the domain "dev.dagoutime.com". The exact set of domains affected is: "dev.dagoutime.com". It may be possible to avoid this rate limit by issuing a certificate with an additional or different domain name.