Title: error – Cannot modify header information
Last modified: August 20, 2016

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# error – Cannot modify header information

 *  [szucslaszlo](https://wordpress.org/support/users/szucslaszlo/)
 * (@szucslaszlo)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/error-cannot-modify-header-information-3/)
 * Hello!
 * I have wp site: topbuxsites.eu
 * I can not login to my admin area because there is a message:
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/topbuxsi/public_html/wp-content/themes/Abate/lib/menu-secondary.php:
   2) in /home/topbuxsi/public_html/wp-includes/pluggable.php on line 934
 * What can i do?
 * I know this thing : <?php and ?> but i did’t find anything before and after.
 * Please help me
 * thanks

Viewing 3 replies - 1 through 3 (of 3 total)

 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/error-cannot-modify-header-information-3/#post-2292749)
 * [Solving “headers already sent” warnings](http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F)
 *  Thread Starter [szucslaszlo](https://wordpress.org/support/users/szucslaszlo/)
 * (@szucslaszlo)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/error-cannot-modify-header-information-3/#post-2292782)
 * i already tried it, but it can not be help me 🙁
 *  [esmi](https://wordpress.org/support/users/esmi/)
 * (@esmi)
 * [14 years, 9 months ago](https://wordpress.org/support/topic/error-cannot-modify-header-information-3/#post-2292803)
 * Try switching to the Twenty Eleven theme by renaming your current theme’s folder
   in wp-content/themes and adding “-old” to the end of the folder name using [FTP](http://codex.wordpress.org/FTP_Clients)
   or whatever file management application your host provides. Do **not** go back
   to using your old theme as it is causing your current problem.

Viewing 3 replies - 1 through 3 (of 3 total)

The topic ‘error – Cannot modify header information’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 3 replies
 * 2 participants
 * Last reply from: [esmi](https://wordpress.org/support/users/esmi/)
 * Last activity: [14 years, 9 months ago](https://wordpress.org/support/topic/error-cannot-modify-header-information-3/#post-2292803)
 * Status: not resolved

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