Site has no settings. How to fix the error?

Question

Django

There is a new project. I connected a third-party app (it seems that all connected apps require the presence of a site in the django_site table) I entered
127.0.0.1:8000 with ID 1 into the table I
specified SITE_ID = 1 in settings.py (and tried SITE_ID = '1' this way) I
launch the site, writes
Request URL : 127.0.0.1:8000/admin
Django Version: 1.9.2
Exception Type: RelatedObjectDoesNotExist
Exception Value: Site has no settings.
What am I doing wrong?