5👍
It seems that your setting in wsgi.py is not working. You may try my way of specifying the settings module:
Under your project dir (dir that contains manage.py), run gunicorn with the command:
gunicorn --env DJANGO_SETTINGS_MODULE=settings.production [project_name].wsgi
Replace [project_name] with your own.
It worked for me.
Source:stackexchange.com