Title: Cannot modify header information
Last modified: October 1, 2023

---

# Cannot modify header information

 *  Resolved [tuheeden](https://wordpress.org/support/users/tuheeden/)
 * (@tuheeden)
 * [2 years, 8 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-191/)
 * Support – I use LOGINIZER and have changed the default wordpress login URL to
   custom After the latest series of updates Woocommerce stopped allowing users 
   to add items to their cart and I get thie following error when I try to access
   my site admin page:
 * Warning: Cannot modify header information – headers already sent by (output started
   at /home/customer/www/sportofhorses.com/public_html/wp-content/plugins/events-
   addon-for-elementor/elementor/naevents-admin-sub-page.php:311) in /home/customer/
   www/sportofhorses.com/public_html/wp-includes/pluggable.php on line 1435
 * I have rolled back the plug-in and verified that all other plugin were up to 
   date. So the site is working but 2.03 but fails on 2.1.1
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fcannot-modify-header-information-191%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Author [nicheaddons](https://wordpress.org/support/users/nicheaddons/)
 * (@nicheaddons)
 * [2 years, 8 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-191/#post-17112961)
 * Hi [@tuheeden](https://wordpress.org/support/users/tuheeden/),
 * Thank you for finding the issue. We have fixed it and released the update. It
   should be working fine now.

Viewing 1 replies (of 1 total)

The topic ‘Cannot modify header information’ is closed to new replies.

 * ![](https://ps.w.org/events-addon-for-elementor/assets/icon-256x256.png?rev=2171715)
 * [Events Addon for Elementor](https://wordpress.org/plugins/events-addon-for-elementor/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/events-addon-for-elementor/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/events-addon-for-elementor/)
 * [Active Topics](https://wordpress.org/support/plugin/events-addon-for-elementor/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/events-addon-for-elementor/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/events-addon-for-elementor/reviews/)

## Tags

 * [addon](https://wordpress.org/support/topic-tag/addon/)
 * [events](https://wordpress.org/support/topic-tag/events/)
 * [php](https://wordpress.org/support/topic-tag/php/)

 * 1 reply
 * 2 participants
 * Last reply from: [nicheaddons](https://wordpress.org/support/users/nicheaddons/)
 * Last activity: [2 years, 8 months ago](https://wordpress.org/support/topic/cannot-modify-header-information-191/#post-17112961)
 * Status: resolved