Title: 404 Errors for Pages Last modified: October 2, 2020 --- # 404 Errors for Pages * Resolved [synerjizzm](https://wordpress.org/support/users/synerjizzm/) * (@synerjizzm) * [5 years, 7 months ago](https://wordpress.org/support/topic/404-errors-for-pages-2/) * Hello, * We’ve been having a problem on our site over the last few days where our pages( besides the front page) are getting 404 errors. * We’ve reinstalled a backup and it was fine but after making some changes and clearing the cache we’re just getting the same problem (hence thinking Hummingbird is the problem). * Deactivating etc. has made no difference – any advice please as this is literally driving us a bit mad now? * Thanks so much, * Oli * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2F404-errors-for-pages-2%2F%3Foutput_format%3Dmd&locale=en_US) to see the link]_ Viewing 6 replies - 1 through 6 (of 6 total) * Plugin Support [Dimitris – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support6/) * (@wpmudev-support6) * [5 years, 7 months ago](https://wordpress.org/support/topic/404-errors-for-pages-2/#post-13489559) * Hello [@synerjizzm](https://wordpress.org/support/users/synerjizzm/) * As long as you deactivate the plugin and the issue remains, then it shouldn’t be coming from it, or it could be a conflict with Hummingbird and another plugin. * Could you please let me know which modules you’ve enabled in Hummingbird? Please advise! * In general, Asset Optimization can break things in the frontend (not actually produce 404s though, just break parts of the page cause of CSS/JS), especially if it’s used in Advanced Mode and you select assets to move to the footer or defer. More info on that can be found here: [https://premium.wpmudev.org/docs/wpmu-dev-plugins/hummingbird/](https://premium.wpmudev.org/docs/wpmu-dev-plugins/hummingbird/) * Warm regards, Dimitris * Thread Starter [synerjizzm](https://wordpress.org/support/users/synerjizzm/) * (@synerjizzm) * [5 years, 7 months ago](https://wordpress.org/support/topic/404-errors-for-pages-2/#post-13492264) * Hello Dimitris, * Thanks so much for taking the time to reply to me. * As far as I’m aware we just have all of the default modules for Hummingbird installed. * Since writing my original post, we’ve found that enabling plain permalinks solves the 404 error but we still get it when we use any other type of permalink. * Have you seen anything like this before? Still convinced clearing the cache caused this issue but could be a cause/correlation issue. * Thanks so much for any advice, * Oli * [Kris – WPMU DEV Support](https://wordpress.org/support/users/wpmudevsupport13/) * (@wpmudevsupport13) * [5 years, 7 months ago](https://wordpress.org/support/topic/404-errors-for-pages-2/#post-13497892) * Hi [@synerjizzm](https://wordpress.org/support/users/synerjizzm/) * This is intresting. * 1. Could you share in your next reply what kind of custom permalinks you try to apply? * 2. Does your server is Apache or Nginx? Please note some Nginx servers requires restart after some changes, including permalinks. In Apache case ask hosting to check apache config file, responsible for including the mod rewrite module, possibly it could be commented out. * 3. Does your site in places in /public_html/ folder or some inside folder like: / public_html/site/ * Kind Regards, Kris * Thread Starter [synerjizzm](https://wordpress.org/support/users/synerjizzm/) * (@synerjizzm) * [5 years, 7 months ago](https://wordpress.org/support/topic/404-errors-for-pages-2/#post-13498008) * Hello Kris, * Thanks so much for replying! * 1. I’m just trying to change to ‘pretty’ permalinks (post name) – eg. site.com/ postname. We had that set up then all of a sudden this problem kicked in. * 2. They’ve assured me at the hosting company that it can’t be Apache as we’re on a shared server. They checked the config. * 3. It’s in public_html/oursite.co.uk * Thanks so much! Might just roll back if I can’t fix this (would rather not though as will lose a few days worth of work)! * All the best and thanks again, * Oli * Plugin Support [Saurabh – WPMU DEV Support](https://wordpress.org/support/users/wpmudev-support7/) * (@wpmudev-support7) * [5 years, 7 months ago](https://wordpress.org/support/topic/404-errors-for-pages-2/#post-13506499) * Hello [@synerjizzm](https://wordpress.org/support/users/synerjizzm/), * I am really sorry if I missed something here but when I checked your site, I did not see any links giving out 404. I also checked that the permalinks are in the format you are looking to have it. Are there some other links which have not yet been put on the menu but are giving 404 errors? If yes, could you please point me to the URL’s giving 404 as of now? * Thank you, Prathamesh Palve * Thread Starter [synerjizzm](https://wordpress.org/support/users/synerjizzm/) * (@synerjizzm) * [5 years, 7 months ago](https://wordpress.org/support/topic/404-errors-for-pages-2/#post-13507260) * Hello Prathamesh and everybody else that commented here! * I couldn’t solve this problem with anything I tried so I rolled the site back to an old version – that solved the permalink issue but meant I had to do some work to get the site back up-to-date. * Not sure what caused the permalinks to stop working in the first place – probably a plugin conflict or something (still not sure). * Thanks so much to everybody who took time to respond! * All the best, * Oli Viewing 6 replies - 1 through 6 (of 6 total) The topic ‘404 Errors for Pages’ is closed to new replies. * ![](https://ps.w.org/hummingbird-performance/assets/icon-256x256.gif?rev=2633221) * [Hummingbird Performance - Cache & Page Speed Optimization for Core Web Vitals | Critical CSS | Minify CSS | Defer CSS Javascript | CDN](https://wordpress.org/plugins/hummingbird-performance/) * [Frequently Asked Questions](https://wordpress.org/plugins/hummingbird-performance/#faq) * [Support Threads](https://wordpress.org/support/plugin/hummingbird-performance/) * [Active Topics](https://wordpress.org/support/plugin/hummingbird-performance/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/hummingbird-performance/unresolved/) * [Reviews](https://wordpress.org/support/plugin/hummingbird-performance/reviews/) ## Tags * [404 errors](https://wordpress.org/support/topic-tag/404-errors/) * [database](https://wordpress.org/support/topic-tag/database/) * [hummingbird](https://wordpress.org/support/topic-tag/hummingbird/) * [Missing pages](https://wordpress.org/support/topic-tag/missing-pages/) * 6 replies * 4 participants * Last reply from: [synerjizzm](https://wordpress.org/support/users/synerjizzm/) * Last activity: [5 years, 7 months ago](https://wordpress.org/support/topic/404-errors-for-pages-2/#post-13507260) * Status: resolved