Title: Error after installing this plugin
Last modified: August 30, 2016

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# Error after installing this plugin

 *  Resolved [wlashack](https://wordpress.org/support/users/wlashack/)
 * (@wlashack)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/error-after-installing-this-plugin/)
 * Hi, I tried to install this plugin and set some custom colors. But immedeately
   after saving them this error message appeared:
 *     ```
       Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /data/web/virtuals/110920/virtual/www/domains/martinvlach.cz/wp-content/plugins/kt-tinymce-color-grid/index.php:1) in /data/web/virtuals/110920/virtual/www/domains/martinvlach.cz/wp-content/plugins/paid-memberships-pro/paid-memberships-pro.php on line 28
   
       Warning: Cannot modify header information - headers already sent by (output started at /data/web/virtuals/110920/virtual/www/domains/martinvlach.cz/wp-content/plugins/kt-tinymce-color-grid/index.php:1) in /data/web/virtuals/110920/virtual/www/domains/martinvlach.cz/wp-includes/pluggable.php on line 1207
       ```
   
 * I am not a codie bud it says something about another plugin I am using – PaidMembershipPro.
   Maybe it helps.
 * [https://wordpress.org/plugins/kt-tinymce-color-grid/](https://wordpress.org/plugins/kt-tinymce-color-grid/)

Viewing 6 replies - 1 through 6 (of 6 total)

 *  [cash3p](https://wordpress.org/support/users/cash3p/)
 * (@cash3p)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/error-after-installing-this-plugin/#post-6689166)
 * Same issue but I’m not using PaidMembershipPro.
 *     ```
       Warning: Cannot modify header information - headers already sent by (output started at /home/.../public_html/wp-content/plugins/kt-tinymce-color-grid/index.php:1) in /home/.../public_html/wp-admin/post.php on line 242
   
       Warning: Cannot modify header information - headers already sent by (output started at /home/..../public_html/wp-content/plugins/kt-tinymce-color-grid/index.php:1) in /home/..../public_html/wp-includes/pluggable.php on line 1207
       ```
   
 *  [littlesh](https://wordpress.org/support/users/littlesh/)
 * (@littlesh)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/error-after-installing-this-plugin/#post-6689180)
 * Same issue and I had to disable the plugin because it breaks all the site.
 *  Plugin Author [Daniel Menȝies](https://wordpress.org/support/users/kungtiger/)
 * (@kungtiger)
 * [10 years, 6 months ago](https://wordpress.org/support/topic/error-after-installing-this-plugin/#post-6689254)
 * Sorry guys, my fault.
    Fixed it
 *  Thread Starter [wlashack](https://wordpress.org/support/users/wlashack/)
 * (@wlashack)
 * [10 years, 6 months ago](https://wordpress.org/support/topic/error-after-installing-this-plugin/#post-6689256)
 * GREAT! Looks like it works OK now now on my website. You helped me a lot with
   this plugin. May I buy you a coffee? 🙂
 *  [cash3p](https://wordpress.org/support/users/cash3p/)
 * (@cash3p)
 * [10 years, 6 months ago](https://wordpress.org/support/topic/error-after-installing-this-plugin/#post-6689258)
 * Thank you! It’s working again. 🙂
 *  Plugin Author [Daniel Menȝies](https://wordpress.org/support/users/kungtiger/)
 * (@kungtiger)
 * [10 years, 5 months ago](https://wordpress.org/support/topic/error-after-installing-this-plugin/#post-6689282)
 * No problem.

Viewing 6 replies - 1 through 6 (of 6 total)

The topic ‘Error after installing this plugin’ is closed to new replies.

 * ![](https://ps.w.org/kt-tinymce-color-grid/assets/icon-256x256.png?rev=1095993)
 * [Central Color Palette](https://wordpress.org/plugins/kt-tinymce-color-grid/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/kt-tinymce-color-grid/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/kt-tinymce-color-grid/)
 * [Active Topics](https://wordpress.org/support/plugin/kt-tinymce-color-grid/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/kt-tinymce-color-grid/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/kt-tinymce-color-grid/reviews/)

 * 6 replies
 * 4 participants
 * Last reply from: [Daniel Menȝies](https://wordpress.org/support/users/kungtiger/)
 * Last activity: [10 years, 5 months ago](https://wordpress.org/support/topic/error-after-installing-this-plugin/#post-6689282)
 * Status: resolved