Title: arning: Cannot modify header information
Last modified: August 19, 2016

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# arning: Cannot modify header information

 *  [pkonweb](https://wordpress.org/support/users/pkonweb/)
 * (@pkonweb)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/arning-cannot-modify-header-information/)
 * I am using 2.9.2 wp and i get the following message when i attempt to log in 
   the wp-admin folder
    Warning: Cannot modify header information – headers already
   sent by (output started at /home/content/p/k/o/pkonweb/html/wp-content/themes/
   mamosa/functions/admin-functions.php:2) in /home/content/p/k/o/pkonweb/html/wp-
   includes/pluggable.php on line 868
 * pls advise. tx..

Viewing 8 replies - 1 through 8 (of 8 total)

 *  [Samuel B](https://wordpress.org/support/users/samboll/)
 * (@samboll)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/arning-cannot-modify-header-information/#post-1491486)
 * ftp to site or use host’s file manager to rename plugins folder, thus deactivating
   all plugins
    if a plugin is borked this will let you log in
 * if this doesn’t help, rename your theme folder, thus activating default theme
   
   if a theme error this will let you log in
 *  Moderator [James Huff](https://wordpress.org/support/users/macmanx/)
 * (@macmanx)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/arning-cannot-modify-header-information/#post-1491530)
 * Actually, it looks like you have unexpected white space (either a single space
   or an entire line) on line 2 of the `admin-functions.php` file. See this for 
   more info:
 * [http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F](http://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F)
 *  [Samuel B](https://wordpress.org/support/users/samboll/)
 * (@samboll)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/arning-cannot-modify-header-information/#post-1491572)
 * that would normally be true, except it is calling `pluggable.php`
    also, it is
   unlikely a space could be introduced to that file
 *  Thread Starter [pkonweb](https://wordpress.org/support/users/pkonweb/)
 * (@pkonweb)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/arning-cannot-modify-header-information/#post-1491662)
 * thanks guys i was able to log into the wp-admin but all the posts do not show
   up except the home page. i had uninstalled and then reinstalled wordpress due
   to malware problems at godaddy. i backedup old Db and then restored it in new
   DB per godaddy advise. pls advise…
 *  [Samuel B](https://wordpress.org/support/users/samboll/)
 * (@samboll)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/arning-cannot-modify-header-information/#post-1491665)
 * did you then re-save permalinks?
    dashboard – settings – permalinks
 *  Thread Starter [pkonweb](https://wordpress.org/support/users/pkonweb/)
 * (@pkonweb)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/arning-cannot-modify-header-information/#post-1491673)
 * permalinks format did not change when i restored old DB in new DB but i did go
   to settings and re-saved it .. still no change.. old links wont call old posts…
 *  Thread Starter [pkonweb](https://wordpress.org/support/users/pkonweb/)
 * (@pkonweb)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/arning-cannot-modify-header-information/#post-1491674)
 * it is working in firefox now (after 10 mnts).. but not still working in IE. will
   wait… may be it has to do with cache.. tx Samboll. u r cool!
 *  Thread Starter [pkonweb](https://wordpress.org/support/users/pkonweb/)
 * (@pkonweb)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/arning-cannot-modify-header-information/#post-1491708)
 * Hello there… I am unable to add tags and category to new posts… these two functions
   do not work when i add or edit a post.. pls advise

Viewing 8 replies - 1 through 8 (of 8 total)

The topic ‘arning: Cannot modify header information’ is closed to new replies.

## Tags

 * [pluggable.php](https://wordpress.org/support/topic-tag/pluggable-php/)
 * [Warning: Cannot modify header information](https://wordpress.org/support/topic-tag/warning-cannot-modify-header-information/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 8 replies
 * 3 participants
 * Last reply from: [pkonweb](https://wordpress.org/support/users/pkonweb/)
 * Last activity: [16 years, 1 month ago](https://wordpress.org/support/topic/arning-cannot-modify-header-information/#post-1491708)
 * Status: not resolved

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