Как мога да поправя този администраторски проблем на Django? Django admin Съвпадаща заявка за сайт не съществува

Админът ми не работи. Вече го пробвах за няколко часа.

Миграцията работи:

C:\Users\sebas\AI_MachineLearning\Django_Projekt\pythonprojects\cookbook>python manage.py migrate
Operations to perform:
  Apply all migrations: admin, auth, contenttypes, recipes, sessions, sites
Running migrations:
  No migrations to apply.

C:\Users\sebas\AI_MachineLearning\Django_Projekt\pythonprojects\cookbook>

The Superuser is created.

Runserver works:
C:\Users\sebas\AI_MachineLearning\Django_Projekt\pythonprojects\cookbook>python manage.py runserver
Watching for file changes with StatReloader
Performing system checks...

System check identified no issues (0 silenced).
September 18, 2019 - 22:06:57
Django version 2.2.5, using settings 'cookbook.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.

Ако опитам URL адресите ../admin:

http://dpaste.com/069QF7H

Не съществува в /admin/login/

Site matching query does not exist.

Request Method:     GET
Request URL:    http://127.0.0.1:8000/admin/login/?next=/admin/
Django Version:     2.2.5
Exception Type:     DoesNotExist
Exception Value:    

Site matching query does not exist.

Exception Location:     C:\Users\sebas\.conda\envs\pythonDjango\lib\site-packages\django\db\models\query.py in get, line 408
Python Executable:  C:\Users\sebas\.conda\envs\pythonDjango\python.exe
Python Version:     3.6.7
Python Path:    

['C:\\Users\\sebas\\AI_MachineLearning\\Django_Projekt\\pythonprojects\\cookbook',
 'C:\\Users\\sebas\\.conda\\envs\\pythonDjango\\python36.zip',
 'C:\\Users\\sebas\\.conda\\envs\\pythonDjango\\DLLs',
 'C:\\Users\\sebas\\.conda\\envs\\pythonDjango\\lib',
 'C:\\Users\\sebas\\.conda\\envs\\pythonDjango',
 'C:\\Users\\sebas\\.conda\\envs\\pythonDjango\\lib\\site-packages']

Server time:    Mi, 18 Sep 2019 21:55:32 +0200
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