Title: [Plugin: Cart66 Lite :: WordPress Ecommerce] Warning: Cannot modify header information
Last modified: August 20, 2016

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# [Plugin: Cart66 Lite :: WordPress Ecommerce] Warning: Cannot modify header information

 *  [ejhost](https://wordpress.org/support/users/ejhost/)
 * (@ejhost)
 * [13 years, 11 months ago](https://wordpress.org/support/topic/plugin-cart66-lite-wordpress-ecommerce-warning-cannot-modify-header-information/)
 * Hi,
 * I’m getting 2 warnings on the header of each of my pages.
 * Warning: Cannot modify header information – headers already sent by (output started
   at ~hidden~ index.php:3) in ~hidden~ /plugins/cart66-lite/models/Cart66SessionDb.
   php on line 166
 * Warning: Cannot modify header information – headers already sent by (output started
   at ~hidden~ /index.php:3) in ~hidden~ /plugins/cart66-lite/models/Cart66SessionDb.
   php on line 167
 * I think this just started when I updated to the newest version.
 * I noticed that when I’m logged into WP everything works fine. But when I visit
   my site as a vistor I see these errors + the checkout doesn’t work…
 * Worthless!!
 * Any help is greatly appreciated. I shut off the plugin for now. I’ve had lots
   of issues with this plugin, although I guess I can’t complain about something
   free.
 * [http://wordpress.org/extend/plugins/cart66-lite/](http://wordpress.org/extend/plugins/cart66-lite/)

Viewing 1 replies (of 1 total)

 *  [abossola](https://wordpress.org/support/users/abossola/)
 * (@abossola)
 * [13 years, 8 months ago](https://wordpress.org/support/topic/plugin-cart66-lite-wordpress-ecommerce-warning-cannot-modify-header-information/#post-2871159)
 * I needed to remove a blank line at the bottom of my wp-config.php file for this
   fix.
 * Also check closing tags and spaces at the end of you functions.php file or the
   like.
 * Good luck and I hope that fixes it for you.
 * Andy Bossola
    [http://www.oasiscreative.com](http://www.oasiscreative.com)

Viewing 1 replies (of 1 total)

The topic ‘[Plugin: Cart66 Lite :: WordPress Ecommerce] Warning: Cannot modify header
information’ is closed to new replies.

 * ![](https://s.w.org/plugins/geopattern-icon/cart66-lite_6e9308.svg)
 * [Cart66 Lite :: WordPress Ecommerce](https://wordpress.org/plugins/cart66-lite/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/cart66-lite/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/cart66-lite/)
 * [Active Topics](https://wordpress.org/support/plugin/cart66-lite/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/cart66-lite/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/cart66-lite/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [abossola](https://wordpress.org/support/users/abossola/)
 * Last activity: [13 years, 8 months ago](https://wordpress.org/support/topic/plugin-cart66-lite-wordpress-ecommerce-warning-cannot-modify-header-information/#post-2871159)
 * Status: not resolved