All sites sending self signed SSL

Provider: Digital Ocean

System: Ubuntu 18.04

Installation option: Via Digital Ocean Marketplace

OLS or Enterprise? Cyberpanel / OLS

Replace JS/CSS files to JS Delivr?
no

Install Memcached extension for PHP?
no

Install LiteSpeed Memcached?
no

Install Memcached?
no

Install Redis extension for PHP?
no

Install Redis?
no

Problem:

All websites are sending certificate for www.example.com even though the SSL issuing is successful. All certificate files are available in /etc/letsencrypt/live/ folder. This happening for both site SSL & Hostname SSL.

Same here