Title: PHP Warning when purging cache from Admin bar
Last modified: May 30, 2017

---

# PHP Warning when purging cache from Admin bar

 *  [Jean-Francois Arseneault](https://wordpress.org/support/users/jfarsen/)
 * (@jfarsen)
 * [9 years ago](https://wordpress.org/support/topic/php-warning-when-puging-cache-from-admin-bar/)
 * Site is on Siteground shared hosting, when pressing Purge in the admin bar, I
   get these error messages :
 * Warning: array_merge(): Argument #2 is not an array in /home/fleurist/public_html/
   wp-includes/load.php on line 63
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/fleurist/public_html/wp-includes/load.php:63) in /home/fleurist/public_html/
   wp-content/plugins/sg-cachepress/class-sg-cachepress.php on line 348
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/fleurist/public_html/wp-includes/load.php:63) in /home/fleurist/public_html/
   wp-content/plugins/sg-cachepress/class-sg-cachepress.php on line 360
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/fleurist/public_html/wp-includes/load.php:63) in /home/fleurist/public_html/
   wp-includes/pluggable.php on line 1195
    -  This topic was modified 9 years ago by [Jean-Francois Arseneault](https://wordpress.org/support/users/jfarsen/).

Viewing 1 replies (of 1 total)

 *  Plugin Author [Hristo Pandjarov](https://wordpress.org/support/users/hristo-sg/)
 * (@hristo-sg)
 * SiteGround Representative
 * [9 years ago](https://wordpress.org/support/topic/php-warning-when-puging-cache-from-admin-bar/#post-9208106)
 * Do you have a ticket id for that issue? It’s some sort of interference with the
   rest of your site and/or a particular PHP version being used which is private
   information that I would like to check.

Viewing 1 replies (of 1 total)

The topic ‘PHP Warning when purging cache from Admin bar’ is closed to new replies.

 * ![](https://ps.w.org/sg-cachepress/assets/icon-256x256.gif?rev=2971889)
 * [Speed Optimizer - The All-In-One Performance-Boosting Plugin](https://wordpress.org/plugins/sg-cachepress/)
 * [Support Threads](https://wordpress.org/support/plugin/sg-cachepress/)
 * [Active Topics](https://wordpress.org/support/plugin/sg-cachepress/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/sg-cachepress/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/sg-cachepress/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Hristo Pandjarov](https://wordpress.org/support/users/hristo-sg/)
 * Last activity: [9 years ago](https://wordpress.org/support/topic/php-warning-when-puging-cache-from-admin-bar/#post-9208106)
 * Status: not resolved