I AM NOT ABLE TO IMPORT CLASSES FROM MY MODELS WHEN AM TRYING TO RUN A QUERY

When i run this command in the django shell when am trying to make query to my databse i get this problem. Kindly help me out:

>>>from app.models import Artist

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

  File ".\app\models.py", line 8, in <module>

    class Artist(models.Model):

  File "C:\Users\Abdul-Waris\source\repos\DjangoWebProject2\DjangoWebProject2\env\lib\site-packages\django\db\models\base.py", line 110, in __new__

    app_config = apps.get_containing_app_config(module)

  File "C:\Users\Abdul-Waris\source\repos\DjangoWebProject2\DjangoWebProject2\env\lib\site-packages\django\apps\registry.py", line 247, in get_containing_app_config

    self.check_apps_ready()

  File "C:\Users\Abdul-Waris\source\repos\DjangoWebProject2\DjangoWebProject2\env\lib\site-packages\django\apps\registry.py", line 125, in check_apps_ready

    raise AppRegistryNotReady("Apps aren't loaded yet.")

django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.

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