FreePBX. Error during generation new cert

Help
1

Hello. I installed a new FreeBPX system and try to generate a certificate, but I get the following error:

There was an error updating the certificate: Verification ended with error: {"identifier":{"type":"dns","value":"pbx.putinbyte.com"},"status":"invalid","expires":"2017-07-21T20:00:29Z","challenges":[{"type":"http-01","status":"invalid","error":{"type":"urn:acme:error:unauthorized","detail":"Invalid response from http:\/\/pbx.putinbyte.com\/.well-known\/acme-challenge\/jc3TTwrDjOFXCgX-qCkTYcAFBJ9EhOrVOGr1t-x9NFE: \"\n\n \n

Although the file was created and is available on the server:

http://pbx.putinbyte.com/.well-known/acme-challenge/jc3TTwrDjOFXCgX-qCkTYcAFBJ9EhOrVOGr1t-x9NFE

Please tell me what could be the problem?

2

Could you give us a bit more information about how you went about attempting to obtain this certificate? The generic help format would be useful (specifically the parts about “I ran this command”.)

3

The file is available over IPv4 (at 172.104.134.29), but your server also advertises an IPv6 address, 2a03:6f00:1::b039:d86a, and the file is not available when your server is contacted there because of a server misconfiguration. Instead, it returns an HTTP 302 code. You should configure your server to be aware that it may be accessed over IPv6, and then the certificate issuance should work properly.