Title: Cannot modify header error – accessing wp.admin Last modified: January 3, 2017 --- # Cannot modify header error – accessing wp.admin * [S Sen](https://wordpress.org/support/users/developersend/) * (@developersend) * [9 years, 4 months ago](https://wordpress.org/support/topic/cannot-modify-header-error-accessing-wp-admin/) * [02-Jan-2017 18:07:19 UTC] PHP Warning: Cannot modify header information – headers already sent by (output started at /home/chiphoss/public_html/blog/wp-config. php:1) in /home/chiphoss/public_html/blog/wp-includes/pluggable.php on line 932 [ 02-Jan-2017 18:07:19 UTC] PHP Warning: Cannot modify header information – headers already sent by (output started at /home/chiphoss/public_html/blog/wp-config. php:1) in /home/chiphoss/public_html/blog/wp-includes/pluggable.php on line 893[ 02-Jan-2017 18:07:19 UTC] PHP Warning: Cannot modify header information – headers already sent by (output started at /home/chiphoss/public_html/blog/wp-config. php:1) in /home/chiphoss/public_html/blog/wp-includes/pluggable.php on line 894[ 02-Jan-2017 18:07:19 UTC] PHP Warning: Cannot modify header information – headers already sent by (output started at /home/chiphoss/public_html/blog/wp-config. php:1) in /home/chiphoss/public_html/blog/wp-includes/pluggable.php on line 895[ 02-Jan-2017 18:07:19 UTC] PHP Warning: Cannot modify header information – headers already sent by (output started at /home/chiphoss/public_html/blog/wp-config. php:1) in /home/chiphoss/public_html/blog/wp-includes/pluggable.php on line 1179[ 02-Jan-2017 21:35:58 UTC] PHP Warning: Cannot modify header information – headers already sent by (output started at /home/chiphoss/public_html/blog/wp-config. php:1) in /home/chiphoss/public_html/blog/wp-includes/pluggable.php on line 1179[ 02-Jan-2017 21:37:07 UTC] PHP Warning: Cannot modify header information – headers already sent by (output started at /home/chiphoss/public_html/blog/wp-config. php:1) in /home/chiphoss/public_html/blog/wp-includes/pluggable.php on line 1179[ 02-Jan-2017 21:37:25 UTC] PHP Warning: Cannot modify header information – headers already sent by (output started at /home/chiphoss/public_html/blog/wp-config. php:1) in /home/chiphoss/public_html/blog/wp-includes/pluggable.php on line 1179[ 02-Jan-2017 21:38:15 UTC] PHP Warning: Cannot modify header information – headers already sent by (output started at /home/chiphoss/public_html/blog/wp-config. php:1) in /home/chiphoss/public_html/blog/wp-includes/pluggable.php on line 1179[ 03-Jan-2017 02:07:37 UTC] PHP Warning: Cannot modify header information – headers already sent by (output started at /home/chiphoss/public_html/blog/wp-config. php:1) in /home/chiphoss/public_html/blog/wp-includes/feed-rss2-comments.php on line 8 [03-Jan-2017 03:13:49 UTC] PHP Warning: Cannot modify header information– headers already sent by (output started at /home/chiphoss/public_html/blog/wp- config.php:1) in /home/chiphoss/public_html/blog/wp-includes/pluggable.php on line 1179 [03-Jan-2017 03:13:53 UTC] PHP Warning: Cannot modify header information– headers already sent by (output started at /home/chiphoss/public_html/blog/wp- config.php:1) in /home/chiphoss/public_html/blog/wp-includes/pluggable.php on line 1179 * How to solve this problem ? I am can’t access wp-admin. Viewing 15 replies - 1 through 15 (of 22 total) 1 [2](https://wordpress.org/support/topic/cannot-modify-header-error-accessing-wp-admin/page/2/?output_format=md) [→](https://wordpress.org/support/topic/cannot-modify-header-error-accessing-wp-admin/page/2/?output_format=md) * Moderator [James Huff](https://wordpress.org/support/users/macmanx/) * (@macmanx) * [9 years, 4 months ago](https://wordpress.org/support/topic/cannot-modify-header-error-accessing-wp-admin/#post-8615255) * You have unexpected whitespace (either a space or an entire line) on line 1 of the wp-config.php file. See [this guide](https://codex.wordpress.org/FAQ_Troubleshooting#How_do_I_solve_the_Headers_already_sent_warning_problem.3F) for more info. * Alternatively, replacing the file by building a new one from wp-config-sample. php via a fresh download of WordPress will work too. * [nevillemerritt](https://wordpress.org/support/users/nevillemerritt/) * (@nevillemerritt) * [9 years, 4 months ago](https://wordpress.org/support/topic/cannot-modify-header-error-accessing-wp-admin/#post-8621055) * I have just experienced the same problem. None of the files referred to in the error messages had been changed between the site working then not working. However, I had added the bbPress plugin and it was that which had caused the conflict. By changing the directory name for bbPress, it was no longer recognised by WordPress so I was able to login again and uninstall it. I had previously installed N-Media WP Member Registration plugin and I think that is where the conflict occurred because bbPress is working fine on my other site. Hope that helps. * [N-Media](https://wordpress.org/support/users/nmedia/) * (@nmedia) * [9 years ago](https://wordpress.org/support/topic/cannot-modify-header-error-accessing-wp-admin/#post-9137409) * Hi there, * this problem is mostly due to spaces in php files. Make sure you don’t have any spaces before and after php tags. * Secondly also make sure WP_DEBGU is set to false. * I hope it helps. * [twdewitt](https://wordpress.org/support/users/twdewitt/) * (@twdewitt) * [8 years, 11 months ago](https://wordpress.org/support/topic/cannot-modify-header-error-accessing-wp-admin/#post-9192288) * Hello, I am getting this message when trying to access website: * Warning: Cannot modify header information – headers already sent by (output started at /home4/twdewitt/fitnessandhealthgenie.com/wp-content/themes/idoneita/about. php:9) in /home4/twdewitt/fitnessandhealthgenie.com/wp-includes/pluggable.php on line 1195 * [Deepak Singla](https://wordpress.org/support/users/deepak14/) * (@deepak14) * [8 years, 11 months ago](https://wordpress.org/support/topic/cannot-modify-header-error-accessing-wp-admin/#post-9255019) * Hello, The following are the causes behind this warning: 1. Page body content sent before the Header. 2. Unparsed HTML before the Header. 3. Extra spaces or lines before php tag. 4. Incorrect PHP Encoding Format. * [link redacted] - This reply was modified 8 years, 11 months ago by [Steven Stern (sterndata)](https://wordpress.org/support/users/sterndata/). * [vikkycabrera](https://wordpress.org/support/users/vikkycabrera/) * (@vikkycabrera) * [8 years, 10 months ago](https://wordpress.org/support/topic/cannot-modify-header-error-accessing-wp-admin/#post-9334226) * I would appreciate some help. I am not a coder, though I can understand the most basic html, and really pre-school level php. I tried to access my site admin but can’t. Instead I get this message on an otherwise blank screen. “Warning: Cannot modify header information – headers already sent by (output started at/ home/intownp/public_html/wp-content/plugins/easy-facebook-likebox/includes/easy- custom-facebook-feed-widget.php:3) in /home/intownp/public_html/wp-includes/pluggable. php on line 1210” * Before this happened and before I turned my computer off for the night, I had updated 2 or three plugins, based on notifications. I am not sure now which ones I updated, except for Mobiloud News, and Facebook Likebox, I think. * I’ve updated plugins as often as I am notified, and have never had this problem before. Now I cannot work on updating my posts and listing. Can anyone help me with this please? My site is intownproperties.ph, and I cannot access the admin page when I type in intownproperties.ph/wp-admin. * I read the previous message, which is somewhat Greek to me. In any case, those are the causes, but how can they be solved? * Thank you so much for your help. Vikky * [myquirkysoul](https://wordpress.org/support/users/myquirkysoul/) * (@myquirkysoul) * [8 years, 10 months ago](https://wordpress.org/support/topic/cannot-modify-header-error-accessing-wp-admin/#post-9339896) * Hi – I’m having the same problem. How to fix please? * Warning: Cannot modify header information – headers already sent by (output started at /home1/myquirk3/public_html/wp-content/plugins/easy-facebook-likebox/includes/ easy-custom-facebook-feed-widget.php:3) in /home1/myquirk3/public_html/wp-includes/ pluggable.php on line 1210 * [vikkycabrera](https://wordpress.org/support/users/vikkycabrera/) * (@vikkycabrera) * [8 years, 10 months ago](https://wordpress.org/support/topic/cannot-modify-header-error-accessing-wp-admin/#post-9353847) * This is what the section says from lines 1201 to 1229 of pluggable.php (The line numbers don’t seem to be aligned to the code.) * * [@since](https://wordpress.org/support/users/since/) 4.2.0 * [@access](https://wordpress.org/support/users/access/) private * * [@see](https://wordpress.org/support/users/see/) wp_sanitize_redirect()** [@param](https://wordpress.org/support/users/param/) array $matches RegEx matches against the redirect location. * [@return](https://wordpress.org/support/users/return/) string URL-encoded version of the first RegEx match. */ function _wp_sanitize_utf8_in_redirect( $matches ) { return urlencode( $matches[0] ); } endif; * if ( !function_exists(‘wp_safe_redirect’) ) : /** * Performs a safe (local) redirect, using wp_redirect(). * * Checks whether the $location is using an allowed host, if it has an absolute * path. A plugin can therefore set or remove allowed host(s) to or from the * list. * * If the host is not allowed, then the redirect defaults to wp-admin on the siteurl * instead. This prevents malicious redirects which redirect to another host, * but only used in a few places. * * [@since](https://wordpress.org/support/users/since/) 2.3.0 * * [@param](https://wordpress.org/support/users/param/) string $location The path to redirect to. * [@param](https://wordpress.org/support/users/param/) int $status Status code to use. */ * [artex222](https://wordpress.org/support/users/artex222/) * (@artex222) * [8 years, 9 months ago](https://wordpress.org/support/topic/cannot-modify-header-error-accessing-wp-admin/#post-9387394) * I can’t get into my site at all. After ….com/wp-admin I am getting blank page with this: * Warning: Cannot modify header information – headers already sent by (output started at /home1/artexglo/public_html/midmacor.com/wp-content/plugins/easy-facebook- likebox/includes/easy-custom-facebook-feed-widget.php:3) in /home1/artexglo/public_html/ midmacor.com/wp-includes/pluggable.php on line 1210 * so I cannot make any adjustments at all. * [shadow_mal](https://wordpress.org/support/users/shadow_mal/) * (@shadow_mal) * [8 years, 8 months ago](https://wordpress.org/support/topic/cannot-modify-header-error-accessing-wp-admin/#post-9458310) * Check wp-load.php and delete all white spaces or blank lines appear before