Title: Can't Login – wrong parameter count and cannot modify header information errors
Last modified: August 21, 2016

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# Can't Login – wrong parameter count and cannot modify header information errors

 *  [JohnCleary](https://wordpress.org/support/users/johncleary/)
 * (@johncleary)
 * [12 years, 10 months ago](https://wordpress.org/support/topic/cant-login-wrong-parameter-count-and-cannot-modify-header-information-errors-1/)
 * Can someone please offer me some help with an issue that just occurred on my 
   website.
 * When I try to log in I get the following errors…
 * Warning: Wrong parameter count for session_destroy() in /homepages/2/d272873542/
   htdocs/wordpress/wp-includes/plugin.php on line 406
 * Warning: Cannot modify header information – headers already sent by (output started
   at /homepages/2/d272873542/htdocs/wordpress/wp-includes/plugin.php:406) in /homepages/
   2/d272873542/htdocs/wordpress/wp-includes/pluggable.php on line 876
 * Does anyone have any ideas on the cause and/or solution please? Web site is running
   normally for visitors…
    _[Do NOT create duplicate threads. Continue with [http://wordpress.org/support/topic/cant-login-wrong-parameter-count-and-cannot-modify-header-information-errors?replies=1%5D](http://wordpress.org/support/topic/cant-login-wrong-parameter-count-and-cannot-modify-header-information-errors?replies=1%5D)_

The topic ‘Can't Login – wrong parameter count and cannot modify header information
errors’ is closed to new replies.

## Tags

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

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 0 replies
 * 1 participant
 * Last reply from: [JohnCleary](https://wordpress.org/support/users/johncleary/)
 * Last activity: [12 years, 10 months ago](https://wordpress.org/support/topic/cant-login-wrong-parameter-count-and-cannot-modify-header-information-errors-1/)
 * Status: not resolved

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