Apache plugin fails to parse subdomain configuration

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/etc/apache2/sites-enabled/pfix.conf

<IfModule mod_ssl.c>
 <VirtualHost *:80>
    ServerName pfix.justsudoit.com
    Redirect / https://pfix.justsudoit.com
 </VirtualHost>
 <VirtualHost _default_:443>
    ServerAdmin mattlloyd37@gmail.com
    DocumentRoot /var/www/pfix/public
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
    SSLEngine on
    ServerName      pfix.justsudoit.com
    SSLCertificateFile /etc/letsencrypt/live/justsudoit.com/fullchain.pem
    SSLCertificateKeyFile /etc/letsencrypt/live/justsudoit.com/privkey.pem
 </VirtualHost>