TWN Template disappears when i changed SEO Settings to yes

site changes like this
http://dillapress.com/index.php/news/index.php

Search Engine Friendly URLs yes
and when i click read more - 404 how to solve this problem

404 - Component not found

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1. an out-of-date bookmark/favourite
2. a search engine that has an out-of-date listing for this site
3. a mistyped address
4. you have no access to this page
5. The requested resource was not found.
6. An error has occurred while processing your request.

Please try one of the following pages:

* Home Page

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Component not found