Deployment Error: Disallowed Host at-

I am trying to host a django website on digital ocean through nginx. I have also mentioned domain in settings.py but getting error as below:

DisallowedHost at /
Invalid HTTP_HOST header: 'proutjournal.com'. You may need to add 'proutjournal.com' to ALLOWED_HOSTS.
Request Method:	GET
Request URL:	http://proutjournal.com/
Django Version:	3.0.7
Exception Type:	DisallowedHost
Exception Value:	
Invalid HTTP_HOST header: 'proutjournal.com'. You may need to add 'proutjournal.com' to ALLOWED_HOSTS.
Exception Location:	/home/pranav/proutm/proutenv/lib/python3.6/site-packages/django/http/request.py in get_host, line 122
Python Executable:	/home/pranav/proutm/proutenv/bin/python
Python Version:	3.6.9
Python Path:	
['/home/pranav/proutm',
 '/home/pranav/proutm/proutenv/bin',
 '/usr/lib/python36.zip',
 '/usr/lib/python3.6',
 '/usr/lib/python3.6/lib-dynload',
 '/home/pranav/proutm/proutenv/lib/python3.6/site-packages']
Server time:	Wed, 8 Jul 2020 03:48:34 +0000
Traceback Switch to copy-and-paste view
/home/pranav/proutm/proutenv/lib/python3.6/site-packages/django/core/handlers/exception.py in inner
            response = get_response(request) …
▶ Local vars
/home/pranav/proutm/proutenv/lib/python3.6/site-packages/django/utils/deprecation.py in __call__
            response = self.process_request(request) …
▶ Local vars
/home/pranav/proutm/proutenv/lib/python3.6/site-packages/django/middleware/common.py in process_request
        host = request.get_host() …
▶ Local vars
/home/pranav/proutm/proutenv/lib/python3.6/site-packages/django/http/request.py in get_host
            raise DisallowedHost(msg) …
▶ Local vars