I was trying to configure hostonnet.test site on localhost. For that I added the below lines in etc/hosts file

127.0.0.1 hostonnet.test

and updated vhosts.conf with following

<VirtualHost 127.0.0.1:80>
        ServerName hostonnet.test
        DocumentRoot /home/tom/www/hostonnet
        <Directory "/home/tom/www/hostonnet">
            Options All
            AllowOverride All
            Require all granted
            Order allow,deny
            allow from all
        </Directory>
</VirtualHost>

Then I accessed hostonnet.test thorugh google chrome. But it was a blank page.

I installed composer

apt install composer

Then run the below from hostonnet folder

cd www/hostonnet
composer install

Now hostonnet.test started to working