Title: error warning
Last modified: December 28, 2020

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# error warning

 *  [khubaibch](https://wordpress.org/support/users/khubaibch/)
 * (@khubaibch)
 * [5 years, 5 months ago](https://wordpress.org/support/topic/error-warning-15/)
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/customer/www/…/public_html/wp-includes/rest-api/class-wp-rest-server.
   php:1402) in /home/customer/www/thekps.com/public_html/wp-admin/admin-header.
   php on line 9

Viewing 1 replies (of 1 total)

 *  [FahimMurshed](https://wordpress.org/support/users/fahimmurshed/)
 * (@fahimmurshed)
 * [5 years, 5 months ago](https://wordpress.org/support/topic/error-warning-15/#post-13838371)
 * Let me know your site PHP version. Is it running with PHP 7.3+ version?

Viewing 1 replies (of 1 total)

The topic ‘error warning’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 1 reply
 * 2 participants
 * Last reply from: [FahimMurshed](https://wordpress.org/support/users/fahimmurshed/)
 * Last activity: [5 years, 5 months ago](https://wordpress.org/support/topic/error-warning-15/#post-13838371)
 * Status: not resolved

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