Title: errors while running sefl diagnosis
Last modified: February 2, 2022

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# errors while running sefl diagnosis

 *  Resolved [danielwid](https://wordpress.org/support/users/danielwid/)
 * (@danielwid)
 * [4 years, 4 months ago](https://wordpress.org/support/topic/errors-while-running-sefl-diagnosis/)
 * Hi,
 * I’m trying to setup the plugin and get the following errors when running the 
   self diagnosis and I don’t know how to correc them. Also, I’m testing on a testing
   environment on Cloudways, not sure if that might be contributing to the errors:
 * 1) The file ‘advanced-cache.php’ in ‘wp-content’ folder has wrong state. Please,
   save the plugin settings to correct it.
    2) The WordPress cache system is not
   active. Please, save the plugin settings to activate it. 3) Checking page optimization
   requests: Failed The response headers must contain ‘X-seraph-accel-prepskip: 
   selfTest’.

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Plugin Author [Seraphinite Solutions](https://wordpress.org/support/users/seraphinitesoft/)
 * (@seraphinitesoft)
 * [4 years, 4 months ago](https://wordpress.org/support/topic/errors-while-running-sefl-diagnosis/#post-15332036)
 * Hi.
 * Seems that another caching plugin is (or was) active. Please, save settings and
   try again.
 *  Plugin Author [Seraphinite Solutions](https://wordpress.org/support/users/seraphinitesoft/)
 * (@seraphinitesoft)
 * [4 years, 2 months ago](https://wordpress.org/support/topic/errors-while-running-sefl-diagnosis/#post-15467505)
 * Closed due to inactivity more that 30 days.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘errors while running sefl diagnosis’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [Seraphinite Solutions](https://wordpress.org/support/users/seraphinitesoft/)
 * Last activity: [4 years, 2 months ago](https://wordpress.org/support/topic/errors-while-running-sefl-diagnosis/#post-15467505)
 * Status: resolved