Title: Internal server Error 500 with css optimized
Last modified: August 21, 2016

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# Internal server Error 500 with css optimized

 *  [pasetti](https://wordpress.org/support/users/pasetti/)
 * (@pasetti)
 * [12 years, 1 month ago](https://wordpress.org/support/topic/internal-server-error-500-with-css-optimized/)
 * Hi,
 * When I turn on the optimization css happens this error:
 * Internal Server Error
 * The server encountered an internal error or misconfiguration and was unable to
   complete your request.
 * …
 * Additionally, a 500 Internal Server Error error was encountered while trying 
   to use an ErrorDocument to handle the request.
 * **Is there anything I can do to fix this?**
    I use cloudflare and WP Super Cache
   too.
 * Thanks! It´s a great plugin.
 * [https://wordpress.org/plugins/autoptimize/](https://wordpress.org/plugins/autoptimize/)

Viewing 1 replies (of 1 total)

 *  Plugin Author [Frank Goossens](https://wordpress.org/support/users/futtta/)
 * (@futtta)
 * [12 years, 1 month ago](https://wordpress.org/support/topic/internal-server-error-500-with-css-optimized/#post-4898043)
 * best would be to make a small list of all the css-files on your site and try 
   to exclude them one after the other. this should allow you to optimize most of
   your css and will allow me to test with the specific CSS which causes problems(
   if you can provide me with the file).
 * next to that there’s an update of the css-minifier in autoptimize, which fixes
   a number of regex-issue (which cause internal server errors) which will be in
   the next version. i’ll probably have a first test-version of 1.8.5 available 
   next week.

Viewing 1 replies (of 1 total)

The topic ‘Internal server Error 500 with css optimized’ is closed to new replies.

 * ![](https://ps.w.org/autoptimize/assets/icon-256X256.png?rev=2211608)
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## Tags

 * [css](https://wordpress.org/support/topic-tag/css/)
 * [error 500](https://wordpress.org/support/topic-tag/error-500/)

 * 1 reply
 * 2 participants
 * Last reply from: [Frank Goossens](https://wordpress.org/support/users/futtta/)
 * Last activity: [12 years, 1 month ago](https://wordpress.org/support/topic/internal-server-error-500-with-css-optimized/#post-4898043)
 * Status: not resolved