Question

How can I successfully delete the stale content?
Typing yes yields the following:

Creating tables ...

The following content types are stale and need to be deleted:

auth | message

Any objects related to these content types by a foreign key will also
be deleted. Are you sure you want to delete these content types?
If you’re unsure, answer ‘no’.

Type 'yes' to continue, or 'no' to cancel: yes

Traceback (most recent call last):
…

raise errorclass, errorvalue
django.db.utils.DatabaseError: 
(1146, "Table '<db_name>.auth_group_permissions' doesn't exist")
Process finished with exit code 1

The other thing I tried was:

from django.contrib.contenttypes.models import ContentType
ct = ContentType.objects.get(app_label='auth',model='messages')

And I receive the following:

DoesNotExist: ContentType matching query does not exist.

Answer 1

You can do a

python manage.py dbshell

and check all the tables created by you before.

See if auth_group_permissions exists. If it’s not there, I guess you can manually create it and do the process again.