Page not found (404)

No Cat matches the given query.
Request Method: GET
Request URL: https://skilfulseo.com/category/3/science/
Raised by: website.views.cat

Using the URLconf defined in skilfulseo_django.urls, Django tried these URL patterns, in this order:

  1. admin/
  2. [name='home']
  3. sitemap.xml [name='sitemap']
  4. sitemap-<section>.xml [name='django.contrib.sitemaps.views.sitemap']
  5. feed/ [name='latest_posts_feed']
  6. post/<int:id>/<slug:slug>/ [name='post']
  7. sys-page/<int:id>/<slug:slug>/ [name='page']
  8. category/<int:id>/<slug:slug>/ [name='cat']

The current path, category/3/science/, matched the last one.

You’re seeing this error because you have DEBUG = True in your Django settings file. Change that to False, and Django will display a standard 404 page.