Title: 502 error
Last modified: August 30, 2016

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# 502 error

 *  [RGhost](https://wordpress.org/support/users/rghost/)
 * (@rghost)
 * [10 years, 8 months ago](https://wordpress.org/support/topic/502-error-5/)
 * In past days WP shows 502 error when try preview post/page. After disabling plugin
   error is gone…
 * [https://wordpress.org/plugins/query-monitor/](https://wordpress.org/plugins/query-monitor/)

Viewing 1 replies (of 1 total)

 *  Plugin Author [John Blackbourn](https://wordpress.org/support/users/johnbillion/)
 * (@johnbillion)
 * WordPress Core Developer
 * [10 years, 8 months ago](https://wordpress.org/support/topic/502-error-5/#post-6708369)
 * Are you using a reverse proxy or php-fpm? If so, you’ll need to take a look at
   your PHP error logs or your Nginx/Apache error logs and find out the exact error.

Viewing 1 replies (of 1 total)

The topic ‘502 error’ is closed to new replies.

 * ![](https://ps.w.org/query-monitor/assets/icon.svg?rev=2994095)
 * [Query Monitor](https://wordpress.org/plugins/query-monitor/)
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 * 1 reply
 * 2 participants
 * Last reply from: [John Blackbourn](https://wordpress.org/support/users/johnbillion/)
 * Last activity: [10 years, 8 months ago](https://wordpress.org/support/topic/502-error-5/#post-6708369)
 * Status: not resolved