Title: error
Last modified: August 21, 2016

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# error

 *  Resolved [setgears](https://wordpress.org/support/users/setgears/)
 * (@setgears)
 * [12 years, 4 months ago](https://wordpress.org/support/topic/error-304/)
 * when a updated at contend i was unable to access my wordpress account and it 
   showed this error Warning: Cannot modify header information – headers already
   sent by (output started at /home/setgears/public_html/wp-content/plugins/atcontent/
   include/atcontent_content_processing.php:1) in /home/setgears/public_html/wp-
   includes/pluggable.php on line 896
    please help i really is this plugin!
 * [http://wordpress.org/plugins/atcontent/](http://wordpress.org/plugins/atcontent/)

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

 *  Moderator [Samuel Wood (Otto)](https://wordpress.org/support/users/otto42/)
 * (@otto42)
 * WordPress.org Admin
 * [12 years, 4 months ago](https://wordpress.org/support/topic/error-304/#post-4495408)
 * [@opuramu](https://wordpress.org/support/users/opuramu/): You caused this error
   in your most recent update to this plugin here:
 * [http://plugins.trac.wordpress.org/changeset/836727/atcontent](http://plugins.trac.wordpress.org/changeset/836727/atcontent)
 * If you examine the atcontent_content_processing.php file, you’ll notice that 
   the first line has changed.
 * Although you cannot see it, you saved the file with an editor using Unicode mode.
   This caused it to include a [Byte Order Mark](https://en.wikipedia.org/wiki/Byte_order_mark)
   at the beginning of that file, before the ?php bit.
 * PHP does not recognize or use Byte Order Marks, however, that content will be
   output when the file is included, leaving to the “cannot modify header information”
   errors for people that have debug enabled on their PHP systems. The inability
   to set headers will also prevent things like people being able to log into their
   dashboards. They will have to manually remove your plugin in order to gain access
   to their site again.
 * You will need to resave that file without the Byte Order Mark, and update it 
   in the SVN system.
 *  Plugin Author [Vadim Novitskiy](https://wordpress.org/support/users/vadnov/)
 * (@vadnov)
 * [12 years, 4 months ago](https://wordpress.org/support/topic/error-304/#post-4495414)
 * Hi setgears and Samuel Wood (Otto)!
 * I fixed the problem with BOM. Please, include our plugin in list.
 * Best,
    Vadim & AtContent Team

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

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 * 2 replies
 * 3 participants
 * Last reply from: [Vadim Novitskiy](https://wordpress.org/support/users/vadnov/)
 * Last activity: [12 years, 4 months ago](https://wordpress.org/support/topic/error-304/#post-4495414)
 * Status: resolved