LetsEncrypt installation issue

[grainwala]

I'm getting problems with LetsEncrypt . When I am trying to install SSL , getting following error .

Challenge pre-checks for http://www.domainname.com/.well-known/acme-challenge/letsencrypt_1612794992 failed... Command:
/usr/bin/curl --connect-timeout 40 -k --silent --resolve www.domainname.com:80:xxx.xxx.xx.xxx --resolve www.domainname.com:443:xxx.xxx.xx.xxx -I -L -X GET http://www.domainname.com/.well-known/acme-challenge/letsencrypt_1612794992
Exiting.

 

[grainwala]

UPDATE
==========
Not sure how, but it resolved automatically .