Title: header output error
Last modified: August 20, 2016

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# header output error

 *  Resolved [budestrings](https://wordpress.org/support/users/budestrings/)
 * (@budestrings)
 * [13 years, 2 months ago](https://wordpress.org/support/topic/header-output-error/)
 * hi.
 * i have a conflict between two plugins – ‘login screen manager’ and ‘fast secure
   contact form’.
 * if i deactivate the contact form plugin, and run the login plugin or vice versa
   all is well, as soon as i try to activate both i get the following php error:
 * >  Warning: Cannot modify header information – headers already sent by (output
   > started at /home/jdhproperty/jdhproperty.co.uk/wp-content/plugins/login-screen-
   > manager/inc/admin.php:61) in /home/jdhproperty/jdhproperty.co.uk/wp-content/
   > plugins/si-contact-form/wp-session/class-wp-session.php on line 92
   > Warning: Cannot modify header information – headers already sent by (output
   > started at /home/jdhproperty/jdhproperty.co.uk/wp-content/plugins/login-screen-
   > manager/inc/admin.php:61) in /home/jdhproperty/jdhproperty.co.uk/wp-includes/
   > pluggable.php on line 876
 * the site is [jdhproperty.co.uk](http://www.jdhproperty.co.uk/) the problem is
   not visible at the moment because i am having to keep login screen manager deactivated
   to work on the site.
 * any suggestions appreciated – this is driving me nuts.

Viewing 2 replies - 1 through 2 (of 2 total)

 *  Thread Starter [budestrings](https://wordpress.org/support/users/budestrings/)
 * (@budestrings)
 * [13 years, 2 months ago](https://wordpress.org/support/topic/header-output-error/#post-3560529)
 * i have been testing a number of contact form plugins. so far all of them cause
   the same or very similar conflicts with login screen manager. the only exception
   is 123contact form, which generates the form on a third party site and fetches
   it via shortcode.
 * i really want to be using login screen manager for this site, but if i don’t 
   find a fix, i’ll have to ditch it.
 *  Plugin Author [Nazmul Hossain Nihal](https://wordpress.org/support/users/nazmulhossainnihal/)
 * (@nazmulhossainnihal)
 * [12 years, 3 months ago](https://wordpress.org/support/topic/header-output-error/#post-3560672)
 * Sorry I was busy in my studies last year.I couldn’t give enoung time on computer.
   Now I have updated Login Screen Manager.Please try the latest version.I hope 
   your problem would be fixed.

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘header output error’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/login-screen-manager_c5e2ef.svg)
 * [Login Screen Manager](https://wordpress.org/plugins/login-screen-manager/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/login-screen-manager/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/login-screen-manager/)
 * [Active Topics](https://wordpress.org/support/plugin/login-screen-manager/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/login-screen-manager/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/login-screen-manager/reviews/)

 * 2 replies
 * 2 participants
 * Last reply from: [Nazmul Hossain Nihal](https://wordpress.org/support/users/nazmulhossainnihal/)
 * Last activity: [12 years, 3 months ago](https://wordpress.org/support/topic/header-output-error/#post-3560672)
 * Status: resolved