Certificate Manager Let's Encrypt Error

Commercial Products and Partners PBXact
1

Let’s Encrypt certificate was expired and will not renew getting the following msg that I get page can not be displayed when attempting to view.
http://txgarrett.us/.well-known/acme-challenge/knJ-ZAGTpxgS6IzfTT33i-f0FQKaulc6mYlF9KvOV7M - token not available

I deleted the cert and tried to add it back and get the same msg,

PBXact 14.0.13.4
Cert Manager Module 14.0.3.2

2

Is port 80 open?

3

Yes, port forwarded to PBXact.

4

Publicly?

5

Yes if I forward port 80 to another server I can reach the webpage of that server from the outside.

6

Are you saying that forwarding port 80 to another server works but this one not?

7

What i’m saying is port 80 is not being blocked and it is forwarded to the PBX system. I can’t add a cert from Let’s Encrypt. What I need to know is how to troubleshoot the error I have posted.