[python] Invalid http_host header

I am trying to develop a website using Django framework and launched using DigitalOcean.com and deployed the necessary files into django-project.

I had to include static files into Django-project and After collecting static files, I tried to refresh my ip

I am including the tutorials which I have used to create the website. https://www.pythonprogramming.net/django-web-server-publish-tutorial/

I am getting the following error :

DisallowedHost at / Invalid HTTP_HOST header: '198.211.99.20'. You may need to add u'198.211.99.20' to ALLOWED_HOSTS.

Can somebody help me to fix this ? This is my first website using Django framework.

settings.py

ALLOWED_HOSTS = ['*']

In your project settings.py file,set ALLOWED_HOSTS like this :

ALLOWED_HOSTS = ['62.63.141.41', 'namjoosadr.com']

and then restart your apache. in ubuntu:

/etc/init.d/apache2 restart