Zend certified PHP/Magento developer

Let’s Encrypt Renew failed as using Varnish on Port 80

Site running well with Varnish. And varnish running on port 80. But when ssl renew is forced it showing error.

Attempting to renew cert (ekafela.com) from /etc/letsencrypt/renewal/exmple.com.conf produced an unexpected error:
Failed authorization procedure. exmple (http-01): urn:ietf:params:acme:error:unauthorized :: The client lacks sufficient authorization :: Invalid response from http://devenv.exmple.com/.well-known/acme-......

As because 80 port is used by varnish and it’s redirect to 404 page with the request URL, now any idea how to resolved this?