Title: "Warning: session_start()" errors Last modified: August 20, 2016 --- # "Warning: session_start()" errors * Resolved [menathor](https://wordpress.org/support/users/menathor/) * (@menathor) * [13 years, 4 months ago](https://wordpress.org/support/topic/warning-session_start-errors/) * Great plugin! Just started getting this error at the top of most of the popup windows (eg. codemagic editor etc.): * Warning: session_start() [function.session-start]: Cannot send session cache limiter – headers already sent (output started at /home/xxxxxxx/public_html/blog/ wp-content/plugins/ultimate-tinymce/addons/preview/preview.php:4) in /home/xxxxxxx/ public_html/blog/wp-content/plugins/si-contact-form/si-contact-form.php on line 1925 * Noticed something similar is being reported by other users too so thought this info might help. * [http://wordpress.org/extend/plugins/ultimate-tinymce/](http://wordpress.org/extend/plugins/ultimate-tinymce/) Viewing 10 replies - 1 through 10 (of 10 total) * Plugin Author [Josh](https://wordpress.org/support/users/josh401/) * (@josh401) * [13 years, 4 months ago](https://wordpress.org/support/topic/warning-session_start-errors/#post-3418450) * Thanks!! * Yes, I believe we have address this issue. The fix will be applied in the next plugin update. * If the next update does not fix it for you, please let me know. * Thread Starter [menathor](https://wordpress.org/support/users/menathor/) * (@menathor) * [13 years, 4 months ago](https://wordpress.org/support/topic/warning-session_start-errors/#post-3418469) * Hey Josy, just updated but the problem is still there: * Warning: Cannot modify header information – headers already sent by (output started at /home/xxxx/public_html/blog/wp-content/plugins/ultimate-tinymce/addons/codemagic/ codemagic.php:4) in /home/xxxx/public_html/xxxx/wp-content/plugins/si-contact- form/wp-session/class-wp-session.php on line 92 * Plugin Author [Josh](https://wordpress.org/support/users/josh401/) * (@josh401) * [13 years, 4 months ago](https://wordpress.org/support/topic/warning-session_start-errors/#post-3418470) * Damn. * Have you tried manually clearing your browser cache? * Plugin Author [Josh](https://wordpress.org/support/users/josh401/) * (@josh401) * [13 years, 4 months ago](https://wordpress.org/support/topic/warning-session_start-errors/#post-3418475) * Did the update to 4.0.7 fix it? * Thread Starter [menathor](https://wordpress.org/support/users/menathor/) * (@menathor) * [13 years, 4 months ago](https://wordpress.org/support/topic/warning-session_start-errors/#post-3418483) * Yep, sorted. Nice work! Fast too 🙂 * One other little thing I noticed… I’ve got “disable html editor” checked and use codemagic instead (to stop switching between the Visual and Text screwing things up). * It works, but only after you’ve saved the post. When creating a new post, the“ Text” tab is visible till it’s saved. It’s not really a major issue though. * Plugin Author [Josh](https://wordpress.org/support/users/josh401/) * (@josh401) * [13 years, 4 months ago](https://wordpress.org/support/topic/warning-session_start-errors/#post-3418486) * Awesome! * Okay, I’ll take a look at the other issue in just a moment. It probably has something to do with WP changing the name of that tab from “HTML” to “Text”. Most likely, it’s a CSS conflict. * I’ll check it out… and thanks for noticing! * EDIT: Yep.. it’s doing the same thing to me. When the option is enabled to disable the “Text” tab, it appears to work on all existing posts/pages… but not when you first create a NEW post or page. * Will look into this today. Thanks!! * [eng.sakher](https://wordpress.org/support/users/engsakher/) * (@engsakher) * [13 years, 4 months ago](https://wordpress.org/support/topic/warning-session_start-errors/#post-3418502) * The last update has took huge amount of time, (25 minutes)!! then, this error message shown: * The plugin ultimate-tinymce/main.php has been deactivated due to an error: Plugin file does not exist. * [eng.sakher](https://wordpress.org/support/users/engsakher/) * (@engsakher) * [13 years, 4 months ago](https://wordpress.org/support/topic/warning-session_start-errors/#post-3418503) * The plugin has been removed automatically after update!!! * [eng.sakher](https://wordpress.org/support/users/engsakher/) * (@engsakher) * [13 years, 4 months ago](https://wordpress.org/support/topic/warning-session_start-errors/#post-3418504) * I tried to re-install it again, but never succeed! it takes a long time but don’t succeed. * Plugin Author [Josh](https://wordpress.org/support/users/josh401/) * (@josh401) * [13 years, 4 months ago](https://wordpress.org/support/topic/warning-session_start-errors/#post-3418512) * Sometimes your server has permissions set which limit the filesize available to upload. * If the plugin is not updating successfully… you have two options: * 1. You can copy the plugin to your server via FTP. 2. You can increase the file size limit by editing your php.ini file. If you’re not sure how, your hosting provider can help. Viewing 10 replies - 1 through 10 (of 10 total) The topic ‘"Warning: session_start()" errors’ is closed to new replies. * ![](https://s.w.org/plugins/geopattern-icon/ultimate-tinymce.svg) * [Ultimate TinyMCE](https://wordpress.org/plugins/ultimate-tinymce/) * [Frequently Asked Questions](https://wordpress.org/plugins/ultimate-tinymce/#faq) * [Support Threads](https://wordpress.org/support/plugin/ultimate-tinymce/) * [Active Topics](https://wordpress.org/support/plugin/ultimate-tinymce/active/) * [Unresolved Topics](https://wordpress.org/support/plugin/ultimate-tinymce/unresolved/) * [Reviews](https://wordpress.org/support/plugin/ultimate-tinymce/reviews/) * 10 replies * 3 participants * Last reply from: [Josh](https://wordpress.org/support/users/josh401/) * Last activity: [13 years, 4 months ago](https://wordpress.org/support/topic/warning-session_start-errors/#post-3418512) * Status: resolved