Title: WordPress error while trying to login
Last modified: August 22, 2016

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# WordPress error while trying to login

 *  [hval007](https://wordpress.org/support/users/hval007/)
 * (@hval007)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/wordpress-error-while-trying-to-login/)
 * Hi All,
 * Recently i received some errors while trying to login to the admin portal ;
 * Notice: Constant WP_DEBUG already defined in /volume1/web/wordpress/wp-config.
   php on line 106 Warning: Cannot modify header information – headers already sent
   by (output started at /volume1/web/wordpress/wp-config.php:106) in /volume1/web/
   wordpress/wp-login.php on line 414 Warning: Cannot modify header information –
   headers already sent by (output started at /volume1/web/wordpress/wp-config.php:
   106) in /volume1/web/wordpress/wp-login.php on line 426 Warning: Cannot modify
   header information – headers already sent by (output started at /volume1/web/
   wordpress/wp-config.php:106) in /volume1/web/wordpress/wp-includes/pluggable.
   php on line 861 Warning: Cannot modify header information – headers already sent
   by (output started at /volume1/web/wordpress/wp-config.php:106) in /volume1/web/
   wordpress/wp-includes/pluggable.php on line 862 Warning: Cannot modify header
   information – headers already sent by (output started at /volume1/web/wordpress/
   wp-config.php:106) in /volume1/web/wordpress/wp-includes/pluggable.php on line
   863
 * I will appreciate if anyone can help to resolve the errors with step by step 
   instructions.
 * So far i have searched the internet without much answers, the one thing i have
   checked is the wp-login.php file and made sure its format and code is correct
   according to [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)
 * Thanks in advance!
    Hemant

Viewing 4 replies - 1 through 4 (of 4 total)

 *  [wooconnect](https://wordpress.org/support/users/wooconnect/)
 * (@wooconnect)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/wordpress-error-while-trying-to-login/#post-5417486)
 * Hi,
 * Mostly a plugin conflict.
    Using FTP/cPanel File Manager, navigate to /wp-content
   and rename ‘plugins’ directory to something else. This will disable all the plugins.
   Try getting into Admin after this.
 * If you are able to get into it, you are doing good. Enable the plugins again,
   but one by one and spot the one which throws error.
 *  [kicia](https://wordpress.org/support/users/kicia/)
 * (@kicia)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/wordpress-error-while-trying-to-login/#post-5417495)
 * Hi,
    such a problem occurs when modyfing f.e. header.php or functions.php in 
   wrong way – these files has an influence on pluggable.php file. I’ve had such
   errors a few times also and then an issue was to find in one of two files I mentioned.
 * In an error information you have a number of code line given – check for errors
   line 106 in wp-config.php.
    Check also line 863 in pluggable.php – there won’t
   be rather any error, but this file will tell you where to find en error, it can
   tell you f.e. it is a header problem (then look for an error in header.php). 
   I’ll check also last modified files – such an error occurs right after typing
   a bad code.
 *  Thread Starter [hval007](https://wordpress.org/support/users/hval007/)
 * (@hval007)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/wordpress-error-while-trying-to-login/#post-5417730)
 * Hi Wooconnect – i did as instructed and changed the plugins folder however there
   is no change – still receive the same error when trying to login.
 *  Thread Starter [hval007](https://wordpress.org/support/users/hval007/)
 * (@hval007)
 * [11 years, 7 months ago](https://wordpress.org/support/topic/wordpress-error-while-trying-to-login/#post-5417731)
 * Hi Kicia,
 * I have not changed any of the files with codes.
 * Can you say what exactly i need to check for? Is there a sample code i can provide
   to you to proof read?
 * thanks.

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘WordPress error while trying to login’ is closed to new replies.

## Tags

 * [errors](https://wordpress.org/support/topic-tag/errors/)
 * [login](https://wordpress.org/support/topic-tag/login/)
 * [wp-config.php](https://wordpress.org/support/topic-tag/wp-config-php/)

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 4 replies
 * 3 participants
 * Last reply from: [hval007](https://wordpress.org/support/users/hval007/)
 * Last activity: [11 years, 7 months ago](https://wordpress.org/support/topic/wordpress-error-while-trying-to-login/#post-5417731)
 * Status: not resolved

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