Title: Security Error
Last modified: June 10, 2025

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# Security Error

 *  [Earl_D](https://wordpress.org/support/users/earl_d/)
 * (@earl_d)
 * [11 months, 3 weeks ago](https://wordpress.org/support/topic/security-error-19/)
 * I am checking a security error when I try to clear a page cache or all cache 
   files.
 * There is no additional info just Security error message pops up with an OK button.

Viewing 7 replies - 1 through 7 (of 7 total)

 *  Plugin Author [Emre Vona](https://wordpress.org/support/users/emrevona/)
 * (@emrevona)
 * [11 months, 3 weeks ago](https://wordpress.org/support/topic/security-error-19/#post-18506924)
 * Can you take a screenshot please? I did not understand anything.
 *  Thread Starter [Earl_D](https://wordpress.org/support/users/earl_d/)
 * (@earl_d)
 * [11 months, 3 weeks ago](https://wordpress.org/support/topic/security-error-19/#post-18507413)
 * Here is a screen shot
 * [https://ibb.co/chqydh8N](https://ibb.co/chqydh8N)
 * Also after deactivating the plug-in I still see the Fastest Cache menu in WP 
   Admin
 * [https://ibb.co/D3c26R6](https://ibb.co/D3c26R6)
 *  Plugin Author [Emre Vona](https://wordpress.org/support/users/emrevona/)
 * (@emrevona)
 * [11 months, 3 weeks ago](https://wordpress.org/support/topic/security-error-19/#post-18508080)
 * are you using a server-side cache system?
 *  [Ov3rfly](https://wordpress.org/support/users/ov3rfly/)
 * (@ov3rfly)
 * [11 months, 2 weeks ago](https://wordpress.org/support/topic/security-error-19/#post-18512293)
 * [@earl_d](https://wordpress.org/support/users/earl_d/) Disable cloudflare on 
   your server.
 *  Thread Starter [Earl_D](https://wordpress.org/support/users/earl_d/)
 * (@earl_d)
 * [11 months, 2 weeks ago](https://wordpress.org/support/topic/security-error-19/#post-18514653)
 * [@emrevona](https://wordpress.org/support/users/emrevona/) I have an object cache
   and Cloudflare
 *  Plugin Author [Emre Vona](https://wordpress.org/support/users/emrevona/)
 * (@emrevona)
 * [11 months, 2 weeks ago](https://wordpress.org/support/topic/security-error-19/#post-18514714)
 * The problem is caused by the WordPress nonce security system. To resolve this
   issue, you should add a cache timeout as below.
 * [http://www.wpfastestcache.com/tutorial/wordpress-nonce-cache/](http://www.wpfastestcache.com/tutorial/wordpress-nonce-cache/)
 *  Thread Starter [Earl_D](https://wordpress.org/support/users/earl_d/)
 * (@earl_d)
 * [11 months, 2 weeks ago](https://wordpress.org/support/topic/security-error-19/#post-18516656)
 * ok I will give that a try.

Viewing 7 replies - 1 through 7 (of 7 total)

The topic ‘Security Error’ is closed to new replies.

 * ![](https://ps.w.org/wp-fastest-cache/assets/icon-256x256.png?rev=2064586)
 * [WP Fastest Cache - WordPress Cache Plugin](https://wordpress.org/plugins/wp-fastest-cache/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-fastest-cache/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-fastest-cache/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-fastest-cache/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-fastest-cache/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-fastest-cache/reviews/)

 * 7 replies
 * 3 participants
 * Last reply from: [Earl_D](https://wordpress.org/support/users/earl_d/)
 * Last activity: [11 months, 2 weeks ago](https://wordpress.org/support/topic/security-error-19/#post-18516656)
 * Status: not resolved