cannot open ratticdb in browser(problem loading page occurs.)

[priya124]

I installed ratticdb on ubuntu 12.04 after complte all the steps i just simply hit https://ratticdb on my browser but the browser said unable to connect ratticdb i dont know how to solve this error
please help me to solve this error

In my 000-default.conf
ServerAdmin webmaster@localhost
DocumentRoot /opt/apps/RatticWeb/static/
Servername ratticdb
Redirect permanent / https://ratticdb
I followed the http://www.fishley.co.za/2015/08/rattic-password-database-on-ubuntu-14-04-with-apache/ this guide please help me to solve this