Page not found (404)

Request Method: GET
Request URL: https://webmonstr.com/ru/subject/ts_1-install-sysjs-jquery_install.html

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

  1. admin/
  2. admin/
  3. api [name='schema-swagger-ui']
  4. rosetta/
  5. i18n/
  6. v1/api/
  7. ru/ about [name='about']
  8. ru/ oferta [name='oferta']
  9. ru/ delivery [name='delivery']
  10. ru/ confident [name='confident']
  11. ru/ login [name='login']
  12. ru/ logout [name='logout']
  13. ru/ [name='index']
  14. ru/ courses [name='courses']
  15. ru/ sel_lang/<str:lang> [name='set-lang']
  16. ru/ buy/course/<int:order_id> [name='buy-course']
  17. ru/ pay/success [name='pay-success']
  18. ru/ pay/process [name='pay-process']
  19. ru/ prepay/<int:course_id>/<int:lesson_id> [name='prepay']
  20. ru/ pay/kursak/<int:kursak_id> [name='pay-kursak']
  21. ru/ pay/test/<int:order_id> [name='test-pay']
  22. ru/ pay/course/process [name='pay-course-process']
  23. ru/ mentor/
  24. ru/ student/
  25. ^media/(?P<path>.*)$

The current path, ru/subject/ts_1-install-sysjs-jquery_install.html, didn't match any of these.

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.