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Request URL: http://www.minenergia.gov.co/documents/10192/23966647/100818_inf_PIRES_ii_trim_2018.pdf/c39d44a6-6735-4ad3-944e-4ac0dd65e10e
Raised by: wagtail.documents.views.serve.serve

This document does not match the given filename.

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.