Page not found (404)

Request Method: GET
Request URL: https://www.seabirds.net/posts/2019/03/16/new-course-in-poland-dna-sequence-data-and-phyloge/
Raised by: wagtail.core.views.serve

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.