Title: Cannot modify header information Last modified: August 19, 2016 --- # Cannot modify header information * [m6arate](https://wordpress.org/support/users/m6arate/) * (@m6arate) * [16 years ago](https://wordpress.org/support/topic/cannot-modify-header-information-33/) * with Effects for NextGEN Gallery activated, I receive the following error whenever I try to edit a file in the editor. (I removed the personalized parts of the URLs below, for SEO) * > Warning: Cannot modify header information – headers already sent by (output > started at /wp-content/plugins/effects-for-nextgen-gallery/effects/lightbox/ > effect.php:1) in /wp-admin/theme-editor.php on line 75 * And then, the file successfully saves. This error also occurs when activating/ deactivating a plugin, and it also does this successfully, even though it shows this error. * edit: lines 72-76 of theme-editor.php are * > $location = wp_kses_no_null($location); > $strip = array(‘%0d’, ‘%0a’, ‘%0D’,‘% > 0A’); $location = _deep_replace($strip, $location); header(“Location: $location”); > exit(); Viewing 13 replies - 1 through 13 (of 13 total) * [Samuel B](https://wordpress.org/support/users/samboll/) * (@samboll) * [16 years ago](https://wordpress.org/support/topic/cannot-modify-header-information-33/#post-1470737) * [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) * [lawrencegenova](https://wordpress.org/support/users/lawrencegenova/) * (@lawrencegenova) * [15 years, 3 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-33/#post-1471003) * Samuel B, * I have the same problem and I took a look at the link you provided. * Here’s what my error says: “Warning: Cannot modify header information – headers already sent by (output started at /home/content/28/6615228/html/wp-content/plugins/ add-to-any/services.php:2) in /home/content/28/6615228/html/wp-includes/pluggable. php on line 890” * So based on what I’ve read, the problem I have is on line 890. Unfortunately, I can’t even log into my wordpress to change this supposed line 890. PLEASE HELP BECAUSE MY WEBSITE IS NOW DOWN BECAUSE OF THIS!!! * [lawrencegenova](https://wordpress.org/support/users/lawrencegenova/) * (@lawrencegenova) * [15 years, 3 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-33/#post-1471004) * My website is [http://www.LawrenceGenova.com](http://www.LawrenceGenova.com) * Moderator [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/) * (@keesiemeijer) * [15 years, 3 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-33/#post-1471005) * Can you login here: [http://www.lawrencegenova.com/wp-login.php](http://www.lawrencegenova.com/wp-login.php)? * try: – [resetting the plugins folder](http://codex.wordpress.org/FAQ_Troubleshooting#How_to_deactivate_all_plugins_when_not_able_to_access_the_administrative_menus.3F) by [FTP](http://codex.wordpress.org/FTP_Clients) or or whatever file management application your host provides. * [lawrencegenova](https://wordpress.org/support/users/lawrencegenova/) * (@lawrencegenova) * [15 years, 3 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-33/#post-1471006) * keesiemeijer, * I appreciate the quick response. Fortunately, the login screen actually popped up when I went to “/wp-login.php” * I usually login via “/wp-admin” * Unfortunately, this is what I see after I log in: “Warning: Cannot modify header information – headers already sent by (output started at /home/content/28/6615228/ html/wp-content/plugins/add-to-any/services.php:2) in /home/content/28/6615228/ html/wp-content/plugins/wordpress-mobile-admin/functions.php on line 320 * Warning: Cannot modify header information – headers already sent by (output started at /home/content/28/6615228/html/wp-content/plugins/add-to-any/services.php:2) in /home/content/28/6615228/html/wp-content/plugins/wordpress-mobile-admin/functions. php on line 321 * Warning: Cannot modify header information – headers already sent by (output started at /home/content/28/6615228/html/wp-content/plugins/add-to-any/services.php:2) in /home/content/28/6615228/html/wp-login.php on line 337 * Warning: Cannot modify header information – headers already sent by (output started at /home/content/28/6615228/html/wp-content/plugins/add-to-any/services.php:2) in /home/content/28/6615228/html/wp-login.php on line 349 * Warning: Cannot modify header information – headers already sent by (output started at /home/content/28/6615228/html/wp-content/plugins/add-to-any/services.php:2) in /home/content/28/6615228/html/wp-includes/pluggable.php on line 690 * Warning: Cannot modify header information – headers already sent by (output started at /home/content/28/6615228/html/wp-content/plugins/add-to-any/services.php:2) in /home/content/28/6615228/html/wp-includes/pluggable.php on line 691 * Warning: Cannot modify header information – headers already sent by (output started at /home/content/28/6615228/html/wp-content/plugins/add-to-any/services.php:2) in /home/content/28/6615228/html/wp-includes/pluggable.php on line 692 * Warning: Cannot modify header information – headers already sent by (output started at /home/content/28/6615228/html/wp-content/plugins/add-to-any/services.php:2) in /home/content/28/6615228/html/wp-includes/pluggable.php on line 890″ * I bought my URL via GoDaddy and utilitize “easy-to-use” wordpress.org templates to customize my site. However, I’m very new to this and I have no idea what FTP is. * Moderator [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/) * (@keesiemeijer) * [15 years, 3 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-33/#post-1471007) * Try removing the add-to-any plugin with FTP or or whatever file management application your host provides. * [lawrencegenova](https://wordpress.org/support/users/lawrencegenova/) * (@lawrencegenova) * [15 years, 3 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-33/#post-1471008) * Okay, do you happen to know where I go to use “FTP” or what my host (which I’m guessin’ is GoDaddy) GoDaddy uses? * Moderator [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/) * (@keesiemeijer) * [15 years, 3 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-33/#post-1471009) * I thingk GoDaddy uses [cPanel](http://docs.cpanel.net/twiki/bin/view/AllDocumentation/CpanelDocs/CpanelFiles). With their file manager you can move or delete the plugin * [lawrencegenova](https://wordpress.org/support/users/lawrencegenova/) * (@lawrencegenova) * [15 years, 3 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-33/#post-1471010) * I’ve found cPanel via my account on GoDaddy, found File Manager, and found the specific .php file that had the white spaces that Samuel B was talkin’ about with the link in his post and removed it! Thanks for the help. Now, I just have to wait and see if it works. You see, what happened was that, because I didn’t want website visitors to see that error, I went on my account on GoDaddy and forwarded my website ‘LawrenceGenova.com’ to my Facebook Page ‘[http://www.facebook.com/LawrenceGenova](http://www.facebook.com/LawrenceGenova)‘. * I’ve removed that forwarding, but I guess I have to wait a little for it to finalize, because it’s still forwarding to my fb page as of right now. * Moderator [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/) * (@keesiemeijer) * [15 years, 3 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-33/#post-1471011) * Well I think you fixed it because I can see your site now * [lawrencegenova](https://wordpress.org/support/users/lawrencegenova/) * (@lawrencegenova) * [15 years, 3 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-33/#post-1471012) * It depends; if you’re seeing my Facebook Page, then we don’t know if it’s fixed yet. My actual site is one I did via wordpress.org * I only fowarded it to my Facebook Page maybe just within an hour ago. But after I found the problematic .php file, I removed that forwarding. * I just now checked [LawrenceGenova.com](http://www.LawrenceGenova.com) and it seems to be still fowarding to [Facebook.com/LawrenceGenova](http://www.Facebook.com/LawrenceGenova) * Moderator [keesiemeijer](https://wordpress.org/support/users/keesiemeijer/) * (@keesiemeijer) * [15 years, 3 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-33/#post-1471013) * Maybe you have to clear your browsers cache because at my end it is not forwarding at all. * [lawrencegenova](https://wordpress.org/support/users/lawrencegenova/) * (@lawrencegenova) * [15 years, 3 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-33/#post-1471014) * I can see it now–my website’s back up and runnin’! Thanks a lot for the help keesiemeijer! Viewing 13 replies - 1 through 13 (of 13 total) The topic ‘Cannot modify header information’ is closed to new replies. ## Tags * [Cannot modify header information](https://wordpress.org/support/topic-tag/cannot-modify-header-information/) * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/) * 13 replies * 4 participants * Last reply from: [lawrencegenova](https://wordpress.org/support/users/lawrencegenova/) * Last activity: [15 years, 3 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-33/#post-1471014) * Status: not resolved ## Topics ### Topics with no replies ### Non-support topics ### Resolved topics ### Unresolved topics ### All topics