creating super user fails in django bundle

this is the bug scenario:

after the makemigrations and migrate we run:

# python manage.py createsuperuser

and get the following error:

2019-12-09 15:13:34,606 passlib.registry DEBUG registered 'argon2' handler:
2019-12-09 15:13:34,607 passlib.registry DEBUG registered 'bcrypt' handler:
2019-12-09 15:13:34,609 passlib.registry DEBUG registered 'pbkdf2_sha1' handler:
2019-12-09 15:13:34,609 passlib.registry DEBUG registered 'pbkdf2_sha256' handler:
2019-12-09 15:13:34,610 passlib.registry DEBUG registered 'django_pbkdf2_sha256' handler:
2019-12-09 15:13:34,939 asyncio DEBUG Using proactor: IocpProactor
2019-12-09 15:13:34,942 django.db.backends DEBUG (0.000)
SELECT name, type FROM sqlite_master
WHERE type in ('table', 'view') AND NOT name='sqlite_sequence'
ORDER BY name; args=None
2019-12-09 15:13:34,954 django.db.backends DEBUG (0.000) SELECT "django_migrations"."id", "django_migrations"."app", "django_migrations"."name", "django_migrations"."applied" FROM "django_migrations"; args=()
Id: 0
Password:
Password (again):
This password is too short. It must contain at least 8 characters.
This password is too common.
This password is entirely numeric.
Bypass password validation and create user anyway? [y/N]: y
Traceback (most recent call last):
File "manage.py", line 21, in
main()
File "manage.py", line 17, in main
execute_from_command_line(sys.argv)
File "c:\work_projects\maglan300\Backend\maglan300\maglan300_env\lib\site-packages\django\core\management\__init__.py", line 401, in execute_from_command_line
utility.execute()
File "c:\work_projects\maglan300\Backend\maglan300\maglan300_env\lib\site-packages\django\core\management\__init__.py", line 395, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "c:\work_projects\maglan300\Backend\maglan300\maglan300_env\lib\site-packages\django\core\management\base.py", line 328, in run_from_argv
self.execute(*args, **cmd_options)
File "c:\work_projects\maglan300\Backend\maglan300\maglan300_env\lib\site-packages\django\contrib\auth\management\commands\createsuperuser.py", line 79, in execute
return super().execute(*args, **options)
File "c:\work_projects\maglan300\Backend\maglan300\maglan300_env\lib\site-packages\django\core\management\base.py", line 369, in execute
output = self.handle(*args, **options)
File "c:\work_projects\maglan300\Backend\maglan300\maglan300_env\lib\site-packages\django\contrib\auth\management\commands\createsuperuser.py", line 189, in handle
self.UserModel._default_manager.db_manager(database).create_superuser(**user_data)
AttributeError: 'Manager' object has no attribute 'create_superuser'