у меня есть ошибка, когда я пытаюсь войти в систему любым пользователем ошибка

Unknown password hashing algorithm 'sahar'. Did you specify it in the PASSWORD_HASHERS setting?

Views.Py

<code>def Login(request):
    state = "Please log in below..."
    username = password = ''
    if request.method == 'POST':
        username = request.POST['username']
        password = request.POST['password']
        user = authenticate(username=username, password=password)
        if user is not None:
                if user.is_active:
                    login(request, user)
                    return HttpResponseRedirect('/profile/')
                else:
                    return render_to_response('auth.html',RequestContext(request))

        else:
                return render_to_response('auth.html',RequestContext(request))
    else:
            return render_to_response('auth.html',RequestContext(request)
</code>