Let's encrypt and univention

I get this message at encrypt. Is there anybody to helping me solve this problem? The “x” are my domain and my permanent IP-Adress.

ValueError: Challenge did not pass for xxxx.xx: {u’status’: u’invalid’, u’challenges’: [{u’status’: u’invalid’, u’validationRecord’: [{u’url’: u’http://xxx.xx.well-known/acme-challenge/f8OvIzM9AVPtfnUyXLjIRbBofmq44hw6_VDVyQ_8avU’, u’hostname’: u’xxx.xx’, u’addressUsed’: u’xx.xxx.xx.xx’, u’port’: u’80’, u’addressesResolved’: [u’xx.xxx.xx.xx’]}], u’url’: u’https://acme-v02.api.letsencrypt.org/acme/chall-v3/2384042199/WR34_Q’, u’token’: u’f8OvIzM9AVPtfnUyXLjIRbBofmq44hw6_VDVyQ_8avU’, u’error’: {u’status’: 400, u’type’: u’urn:ietf:params:acme:error:connection’, u’detail’: u’Fetching http://golze.eu/.well-known/acme-challenge/f8OvIzM9AVPtfnUyXLjIRbBofmq44hw6_VDVyQ_8avU: Error getting validation data’}, u’type’: u’http-01’}], u’identifier’: {u’type’: u’dns’, u’value’: u’xxx.xx’}, u’expires’: u’2020-01-27T15:03:20Z’}

Your actual domain name and ip is still in the error message.

When going to it I get a timeout from here.

$ nc -v 80
nc: connect to port 80 (tcp) failed: No route to host

I’m sometimes stupid…
What can I do, to get the certificate or solve this problem?

You need to open port 80 in your firewall.

Thanks! Now it works. I forgot to open the port in my Fritzbox.