Installed App Name Error

[vishnupriyanvs]

I was trying to use django-oscar-mollie in my project.I followed the same steps that are given in description.But I got this error

raise ImproperlyConfigured(
django.core.exceptions.ImproperlyConfigured: Specifying a namespace in include() without providing an app_name is not supported. Set the app_name attribute in the included module, or pass a 2-tuple containing the list of patterns and app_name instead.

May be it's because of not providing the correct installed app name in settings.py , if that's the case can you please provide the correct installed app name for the same.