Let's Debug

Test result for n8n.commonknowledge.coop using http-01

n8n.commonknowledge.coop has an AAAA (IPv6) record (2a03:b0c0:1:d0::2ae:4001) 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://n8n.commonknowledge.coop/.well-known/acme-challenge/letsdebug-test": dial tcp [2a03:b0c0:1:d0::2ae:4001]:80: connect: connection refused

Trace:
@0ms: Making a request to http://n8n.commonknowledge.coop/.well-known/acme-challenge/letsdebug-test (using initial IP 2a03:b0c0:1:d0::2ae:4001)
@0ms: Dialing 2a03:b0c0:1:d0::2ae:4001
@74ms: Experienced error: dial tcp [2a03:b0c0:1:d0::2ae:4001]:80: connect: connection refused
Error
n8n.commonknowledge.coop has an A (IPv4) record (46.101.22.160) 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://n8n.commonknowledge.coop/.well-known/acme-challenge/letsdebug-test": dial tcp 46.101.22.160:80: connect: connection refused

Trace:
@0ms: Making a request to http://n8n.commonknowledge.coop/.well-known/acme-challenge/letsdebug-test (using initial IP 46.101.22.160)
@0ms: Dialing 46.101.22.160
@72ms: Experienced error: dial tcp 46.101.22.160:80: connect: connection refused
A test authorization for n8n.commonknowledge.coop to the Let's Encrypt staging service has revealed issues that may prevent any certificate for this domain being issued.
Fetching http://n8n.commonknowledge.coop/.well-known/acme-challenge/Gs1BZSt8ivEftVAVjLomBiYYcFhVbqiHGG8IYvCXWNI: Connection refused
Debug
Requests made to the domain
Request to: n8n.commonknowledge.coop/2a03:b0c0:1:d0::2ae:4001, Result: [Address=2a03:b0c0:1:d0::2ae:4001,Address Type=IPv6,Server=,HTTP Status=0], Issue: AAAANotWorking
Trace:
@0ms: Making a request to http://n8n.commonknowledge.coop/.well-known/acme-challenge/letsdebug-test (using initial IP 2a03:b0c0:1:d0::2ae:4001)
@0ms: Dialing 2a03:b0c0:1:d0::2ae:4001
@74ms: Experienced error: dial tcp [2a03:b0c0:1:d0::2ae:4001]:80: connect: connection refused

Request to: n8n.commonknowledge.coop/46.101.22.160, Result: [Address=46.101.22.160,Address Type=IPv4,Server=,HTTP Status=0], Issue: ANotWorking
Trace:
@0ms: Making a request to http://n8n.commonknowledge.coop/.well-known/acme-challenge/letsdebug-test (using initial IP 46.101.22.160)
@0ms: Dialing 46.101.22.160
@72ms: Experienced error: dial tcp 46.101.22.160:80: connect: connection refused

Debug
A and AAAA records found for this domain
n8n.commonknowledge.coop. 0 IN A 46.101.22.160
n8n.commonknowledge.coop. 0 IN AAAA 2a03:b0c0:1:d0::2ae:4001
Challenge update failures for n8n.commonknowledge.coop in order https://acme-staging-v02.api.letsencrypt.org/acme/order/5751349/241826560
acme: error code 400 "urn:ietf:params:acme:error:connection": Fetching http://n8n.commonknowledge.coop/.well-known/acme-challenge/Gs1BZSt8ivEftVAVjLomBiYYcFhVbqiHGG8IYvCXWNI: Connection refused
Debug
The IANA public suffix is the TLD of the Registered Domain
The TLD for n8n.commonknowledge.coop is: coop
Debug
1 Certificates contributing to rate limits for this domain

Serial: 387637534600201734235977448208639187103870
NotBefore: 2021-02-14 05:49:13 +0000 UTC
Names: [jitsi.commonknowledge.coop]

Debug
The current status.io status for Let's Encrypt
Operational

Submitted Feb 16 19:55:44 2021. Sat in queue for 2ms. Completed in 4s. Hide verbose information.