Title: 404 Error Last modified: August 31, 2016 --- # 404 Error * Anonymous User 13599757 * (@anonymized-13599757) * [10 years, 2 months ago](https://wordpress.org/support/topic/404-error-234/) * Hi, * I’ve installed QT Slug and everything is working well with my pages. The problem is about my blog posts. * The first strange thing is that permalink structure id defined as “post name” but when editing the post it appears as “default” -> [http://www.luiscosta.info/?p=123](http://www.luiscosta.info/?p=123). Nonetheless it’s working. * Also when I customise SLUG QTS field I receive a 404 error when accessing the post… I went to Settings/Permalinks and save but the error continues. * If I delete the SLUG QTS content the 404 error dissapears. * Any help would be much appreciated. * [https://wordpress.org/plugins/qtranslate-slug/](https://wordpress.org/plugins/qtranslate-slug/) Viewing 7 replies - 1 through 7 (of 7 total) * Thread Starter Anonymous User 13599757 * (@anonymized-13599757) * [10 years, 2 months ago](https://wordpress.org/support/topic/404-error-234/#post-7081963) * OK, so… I’ve made some new discoverings. The 404 error happens when a specific Slug QTS is used. For example before I installed QTS I had a page with abc as url. Later, I changed it to abc-def. After I’ve installed QTS I defined abc as Slug QTS and I receive the 404 error… But then, if I set a new Slug QTS, let’s say xyz everything works well. It seams the old posts names doesn’t work. Any ideas about it? * Plugin Author [Pedro Carvalho](https://wordpress.org/support/users/pedroghandi/) * (@pedroghandi) * [10 years, 2 months ago](https://wordpress.org/support/topic/404-error-234/#post-7081964) * Hi Luís, * Yesterday I looked at your website and noticed that it was working, so i forgot to reply here. * if I understood right, when you set the new slug to the same as the old one, you get a 404? * Let me test on my testing wp. * Thread Starter Anonymous User 13599757 * (@anonymized-13599757) * [10 years, 2 months ago](https://wordpress.org/support/topic/404-error-234/#post-7081968) * Hi Pedro, * I had a url set as [http://www.luiscosta.info/mooc](http://www.luiscosta.info/mooc) and now [http://www.luiscosta.info/pt/mooc/](http://www.luiscosta.info/pt/mooc/) and [http://www.luiscosta.info/en/mooc/](http://www.luiscosta.info/en/mooc/) gives me a 404 error (if I change it to [http://www.luiscosta.info/pt/mooc123/](http://www.luiscosta.info/pt/mooc123/) it will work) * I also had a url set to [http://www.luiscosta.info/tecnologia-social/](http://www.luiscosta.info/tecnologia-social/) and now [http://www.luiscosta.info/pt/tecnologia-social/](http://www.luiscosta.info/pt/tecnologia-social/) gives me a 404 error but [http://www.luiscosta.info/en/social-technology/](http://www.luiscosta.info/en/social-technology/) is properly working * [char-lee](https://wordpress.org/support/users/char-lee/) * (@char-lee) * [10 years, 2 months ago](https://wordpress.org/support/topic/404-error-234/#post-7082078) * Hi Pedro and Luís. I Have the exactly same problem. When I edit any old post, It gives me a 404 error… If I Change the permalink so the url, the 404 is fixed. The problem is that i don´t want to change the post url… * Plugin Author [Pedro Carvalho](https://wordpress.org/support/users/pedroghandi/) * (@pedroghandi) * [10 years, 2 months ago](https://wordpress.org/support/topic/404-error-234/#post-7082079) * hi everyone, i found in a site of mine that there was collisions in the slugs. For example, i had a custom post type, that had “slug-1” and a normal post “slug- 1”. * changing one of them fixed that issue. i also tested against attachments, and found that there’s a possibility that it collides with the slugs. * if you have access to phpmyadmin, search for the slug in the post table in “post_name”. * i’m working to fix this as soon as possible. * [foundvalencia](https://wordpress.org/support/users/foundvalencia/) * (@foundvalencia) * [10 years, 1 month ago](https://wordpress.org/support/topic/404-error-234/#post-7082099) * Hi there, * We have the same problem with the 404 errors. It would be great to have a fix. * Thank you Pedro for your work. * [char-lee](https://wordpress.org/support/users/char-lee/) * (@char-lee) * [10 years, 1 month ago](https://wordpress.org/support/topic/404-error-234/#post-7082102) * Hi Pedro, * Do you have any news about this problem? * Thanks a lot for your work and support! Viewing 7 replies - 1 through 7 (of 7 total) The topic ‘404 Error’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/qtranslate-slug_5fb35e.svg) * [Qtranslate Slug](https://wordpress.org/plugins/qtranslate-slug/) * [Frequently Asked Questions](https://wordpress.org/plugins/qtranslate-slug/#faq) * [Support Threads](https://wordpress.org/support/plugin/qtranslate-slug/) * [Active Topics](https://wordpress.org/support/plugin/qtranslate-slug/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/qtranslate-slug/unresolved/) * [Reviews](https://wordpress.org/support/plugin/qtranslate-slug/reviews/) * 7 replies * 4 participants * Last reply from: [char-lee](https://wordpress.org/support/users/char-lee/) * Last activity: [10 years, 1 month ago](https://wordpress.org/support/topic/404-error-234/#post-7082102) * Status: not resolved