Title: [Plugin: Background Manager] Warning: Cannot modify header information
Last modified: August 20, 2016

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# [Plugin: Background Manager] Warning: Cannot modify header information

 *  Resolved [Diego Meneghetti](https://wordpress.org/support/users/cogu/)
 * (@cogu)
 * [13 years, 11 months ago](https://wordpress.org/support/topic/plugin-background-manager-warning-cannot-modify-header-information/)
 * Hi folks,
 * I’ve activated the plugin and it stats a error/warning linke this:
 * `Warning: Cannot modify header information - headers already sent by (output 
   started at /home/XXXXX/themes/continuum/functions/widgets.php:1) in /home/XXXX/
   wp-includes/pluggable.php on line 866`
 * This is the pluggable.php, lines 863-866:
 *     ```
       if ( !$is_IIS && php_sapi_name() != 'cgi-fcgi' )
       status_header($status); // This causes problems on IIS and some FastCGI setups
   
       header("Location: $location", true, $status);
       ```
   
 * I cant upload images to background, neither activate images sets. Always appears
   the error. The link function works, buts image don’t lads.
 * My WP version is 3.3.1 (PHP 5.3.13) and I already have disabled all others plugins,
   with no luck.
 * Any tips to resolve it?
 * [http://wordpress.org/extend/plugins/background-manager/](http://wordpress.org/extend/plugins/background-manager/)

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

 *  Anonymous User 4048828
 * (@anonymized-4048828)
 * [13 years, 11 months ago](https://wordpress.org/support/topic/plugin-background-manager-warning-cannot-modify-header-information/#post-2847058)
 * This is an error related to the theme you’re using, however, disabling `WP_DEBUG`
   in your `wp_config.php` should keep this warning from interfering with scripts,
   etc.
 *  Thread Starter [Diego Meneghetti](https://wordpress.org/support/users/cogu/)
 * (@cogu)
 * [13 years, 11 months ago](https://wordpress.org/support/topic/plugin-background-manager-warning-cannot-modify-header-information/#post-2847082)
 * Hi Myatu,
    Thanks for the quick response! I’ll try to fix it.
 * tks,
    Diego

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

The topic ‘[Plugin: Background Manager] Warning: Cannot modify header information’
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 * ![](https://s.w.org/plugins/geopattern-icon/background-manager_7c828e.svg)
 * [Background Manager](https://wordpress.org/plugins/background-manager/)
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 * 2 replies
 * 2 participants
 * Last reply from: [Diego Meneghetti](https://wordpress.org/support/users/cogu/)
 * Last activity: [13 years, 11 months ago](https://wordpress.org/support/topic/plugin-background-manager-warning-cannot-modify-header-information/#post-2847082)
 * Status: resolved