Title: Plugin breaks site
Last modified: September 20, 2021

---

# Plugin breaks site

 *  Resolved [anartfulscience](https://wordpress.org/support/users/anartfulscience/)
 * (@anartfulscience)
 * [4 years, 8 months ago](https://wordpress.org/support/topic/plugin-breaks-site-14/)
 * Hello,
 * Firstly I do like the plugin, but there’s an issue. From time to time the plugin
   breaks our sites.
 * I have to manually clear everything in FVM, and clear the page caching.
 * I’m assuming it’s due to the remaining of the CSS files. How can we prevent this
   from happening? Can you prevent the plugin from renaming the files automatically?
 * I have Purge Minified CSS/JS files instantly, unchecked.
 * Thanks, Stephen

Viewing 1 replies (of 1 total)

 *  Plugin Author [Raul P.](https://wordpress.org/support/users/alignak/)
 * (@alignak)
 * [4 years, 4 months ago](https://wordpress.org/support/topic/plugin-breaks-site-14/#post-15310233)
 * You would need to use a compatible cache plugin, or a hosting that is supported
   by the plugin.
 * It will depend on how the page cache is running and for how long it’s valid.
 * When you update a plugin, theme, or as needed, the code changes so the cache 
   needs to be regenerated and the file names will change. If the file names were
   not changed, the updates would not be reflected on your users browsers, or it
   would be cached on the CDN and errors would occur.
 * The issue of missing CSS/JS files means, you have purged FVM or the daily maintenance
   to delete expire files ran, but page cache was not cleared. If you do not clear
   page cache after deleting fvm generated files, they will result in 404 errors.
 * FVM tries to auto purge several hosting providers and cache plugins, however,
   if your hosting also does page caching in-between and FVM cannot purge it, that
   may be the reason for the situation to happen.
 * Please ensure that whenever you purge FVM, you also purge your page caching.

Viewing 1 replies (of 1 total)

The topic ‘Plugin breaks site’ is closed to new replies.

 * ![](https://ps.w.org/fast-velocity-minify/assets/icon-128x128.jpg?rev=1440946)
 * [Fast Velocity Minify](https://wordpress.org/plugins/fast-velocity-minify/)
 * [Support Threads](https://wordpress.org/support/plugin/fast-velocity-minify/)
 * [Active Topics](https://wordpress.org/support/plugin/fast-velocity-minify/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/fast-velocity-minify/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/fast-velocity-minify/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Raul P.](https://wordpress.org/support/users/alignak/)
 * Last activity: [4 years, 4 months ago](https://wordpress.org/support/topic/plugin-breaks-site-14/#post-15310233)
 * Status: resolved