What to do if django admin panel on heroku won't open?

Question

Django

I just deployed a django project on heroku through genicorn, everything works except for the admin panel.
Yes, I created a superuser, no, I did not change the admin page.

Gives error "DoesNotExist at /admin Url matching query does not exist."

Deploy itself - www.shirman.gq
Working admin panel - www.shirman.gq/admin

urls.py

from django.contrib import admin
from django.urls import path, include

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include('shortner.urls'))
]

Answer 1

It happens :)
http://www.shirman.gq/admin/
I hope you can notice the error :)