Why not open the website locally?

Installed a clean Ubuntu 16.04, mounted LAMP, added to the hosts file 127.0.0.1 my.domain.local
Added in my apache2.domain.loca.conf

<virtualhost *:80>
 ServerName my.domain.local
 DocumentRoot /var/www/my/backend/web
 <directory var www my backend web>
 RewriteEngine on
 RewriteCond %{REQUEST_FILENAME} !-f
 RewriteCond %{REQUEST_FILENAME} !-d
 RewriteRule . index.php
 Options Indexes FollowSymLinks MultiViews
 AllowOverride None
 Order allow,deny
 allow from all
</directory>
 ErrorLog ${APACHE_LOG_DIR}/error.log
 CustomLog ${APACHE_LOG_DIR}/access.log combined
</virtualhost>

In FireFox the site works, and in chrome, the first was a certificate error, I have included in apache-ssl, sense 0.
ERR_CONNECTION_REFUSED constantly fails to access the website
Why?