Error AUTOSSL

Hello everyone, at the moment of wanting to install autossl of a domain I throw the following error:

AutoSSL Issue Failed![Fri Jul  7 15:56:04 EST 2017] Single domain='dom.com'
[Fri Jul  7 15:56:04 EST 2017] Getting domain auth token for each domain
[Fri Jul  7 15:56:04 EST 2017] Getting webroot for domain='dom.com'
[Fri Jul  7 15:56:04 EST 2017] Getting new-authz for domain='dom.com'
[Fri Jul  7 15:56:05 EST 2017] The new-authz request is ok.
[Fri Jul  7 15:56:05 EST 2017] Verifying:dom.com
[Fri Jul  7 15:56:08 EST 2017] dom.com:Verify error:Fetching http://dom.com/.well-known/acme-challenge/vTvAGDuOLnoCxyzmaOM3XfopL2rXZ3MlngXV2UAMDf4: Error getting validation data
[Fri Jul  7 15:56:08 EST 2017] Please add '--debug' or '--log' to check more details.
[Fri Jul  7 15:56:08 EST 2017] See: https://github.com/Neilpang/acme.sh/wiki/How-to-debug-acme.sh
AutoSSL Issue Failed![Fri Jul  7 15:56:09 EST 2017] Single domain='dom.com'
[Fri Jul  7 15:56:09 EST 2017] Getting domain auth token for each domain
[Fri Jul  7 15:56:09 EST 2017] Getting webroot for domain='dom.com'
[Fri Jul  7 15:56:09 EST 2017] Getting new-authz for domain='dom.com'
[Fri Jul  7 15:56:10 EST 2017] The new-authz request is ok.
[Fri Jul  7 15:56:10 EST 2017] Verifying:dom.com
[Fri Jul  7 15:56:14 EST 2017] dom.com:Verify error:Fetching http://dom.com/.well-known/acme-challenge/dTAQlmwIDFiExjGgOtTCQ7AIKfJKjlnSMx0Hv56UT9E: Error getting validation data
[Fri Jul  7 15:56:14 EST 2017] Please add '--debug' or '--log' to check more details.
[Fri Jul  7 15:56:14 EST 2017] See: https://github.com/Neilpang/acme.sh/wiki/How-to-debug-acme.sh

Thankful for the help that we can provide.

Greetings.

I have the Problem too all my Websites aktuell Offline for this Error, new install the Server + CWP is dont help by this problem and the error is on CentOS 6 + 7 ......... need help

In the configuration of the apache change the listener from 80 to 443 so that cwp did not indicate to me that it was not listening the port 443 when executing curl to the link that appears in the error I gave the following:

curl: (7) Failed connect to dom.com:80; Conexión rehusada

Is it that you should hear port 80 and 443 in the apache configuration?

I remain attentive to your answers.

Greetings.