It is now working. Thanks a lot for pointing me in the right direction.
apachectl -t -D DUMP_VHOSTS
VirtualHost configuration:
*:443 3.11.143.110 (/etc/apache2/sites-enabled/000-default-le-ssl.conf:2)
*:80 3.11.143.110 (/etc/apache2/sites-enabled/000-default.conf:1)