Unable to update challenge :: authorization must be pending

LetsEncrypt Generation Failure. Errors below. Public DNS appears to be ok using “google dig”. System is fully updated and all modules updated. On the line below 404 not found. after .com I see two // ? The previous line only had one slash.

Unable to update challenge :: authorization must be pending

Requested ‘http://pbx.mydomain.com**//**.freepbx-known/006af2f1e7dc7daca4ada6c6b3efc5’ - 404 Not Found

Processing: pbx.mydomain.com, Local IP:, Public IP: 45.xx.xx.xxx

Self test: trying http://pbx.mydomain.com/.freepbx-known/006af2f1e7dc7daca4aa6b36befc5

Self test: received 006af2f1e7dc7dacada6c6b36befc5

Requested ‘http://pbx.mydomain.com//.freepbx-known/006af2f1e7dc7dada6c6b36befc5’ - 404 Not Found

Getting list of URLs for API

Requesting new nonce for client communication

Account already registered. Continuing.

Sending registration to letsencrypt server

Sending signed request to https://acme-v02.api.letsencrypt.org/acme/new-acct

Account: https://acme-v02.api.letsencrypt.org/acme/acct/4437310

Starting certificate generation process for domains

Requesting challenge for pbx.mydomain.com

Sending signed request to https://acme-v02.api.letsencrypt.org/acme/new-order

Sending signed request to https://acme-v02.api.letsencrypt.org/acme/authz-v3/134996286

Got challenge token for pbx.mydomain.com

Token for pbx.mydomain.com saved at /var/www/html/.well-known/acme-challenge/-Miw1hlfBUEJrEVFSM6Dy4fCpGC1b6yfl33QvLk4iYU and should be available at http://pbx.mydomain.com/.well-known/acme-challenge/-Miw1hlfBUEJrEVFSM6Dy4fCpGC1Lk4iYU

Sending request to challenge

Sending signed request to https://acme-v02.api.letsencrypt.org/acme/chall-v3/13979486/m3zu5g

Verification pending, sleeping 1s

Sending signed request to https://acme-v02.api.letsencrypt.org/acme/chall-v3/1397996286/m3zu5g

Disabling UPnP on the unifi firewall fixed the issue. The DVR started using port 80 via UPnP.

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