Title: fatal error when used
Last modified: August 30, 2016

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# fatal error when used

 *  Resolved [cspub](https://wordpress.org/support/users/cspub/)
 * (@cspub)
 * [10 years, 5 months ago](https://wordpress.org/support/topic/fatal-error-when-used/)
 * i installed and activated. i go to category page in front end and get this fatal
   error.
    Fatal error: ob_start(): Cannot use output buffering in output buffering
   display handlers in /home/backflow/public_html/wp-content/plugins/enhanced-category-
   pages/classes/ecp/WP_Integration.php on line 94
 * [https://wordpress.org/plugins/enhanced-category-pages/](https://wordpress.org/plugins/enhanced-category-pages/)

Viewing 10 replies - 1 through 10 (of 10 total)

 *  Plugin Author [cip](https://wordpress.org/support/users/cip/)
 * (@cip)
 * [10 years, 5 months ago](https://wordpress.org/support/topic/fatal-error-when-used/#post-6814534)
 * Hi!
 * We are checking this and shall be solved soon: ETA 1h.
 *  Plugin Author [cip](https://wordpress.org/support/users/cip/)
 * (@cip)
 * [10 years, 5 months ago](https://wordpress.org/support/topic/fatal-error-when-used/#post-6814538)
 * We have troubles duplicating this.
 * Could you mention what plugins you have installed, what theme and what PHP version?
 * Thank you!
 *  Thread Starter [cspub](https://wordpress.org/support/users/cspub/)
 * (@cspub)
 * [10 years, 5 months ago](https://wordpress.org/support/topic/fatal-error-when-used/#post-6814548)
 * i’m using shape 5 theme.
    plugins: all in one seo pack category tinymce contact
   form builder improved include page list category posts pages link to s5 accordion
   menu s5 box tinymce advanced widget context
 * php version 5.5.29
 *  Thread Starter [cspub](https://wordpress.org/support/users/cspub/)
 * (@cspub)
 * [10 years, 5 months ago](https://wordpress.org/support/topic/fatal-error-when-used/#post-6814549)
 * i did have to deactivate your plugin so that users didn’t get the error
 *  Plugin Author [cip](https://wordpress.org/support/users/cip/)
 * (@cip)
 * [10 years, 5 months ago](https://wordpress.org/support/topic/fatal-error-when-used/#post-6814552)
 * Thank you!
 * The error occurred by an incompatibility with one of those plugin or the theme
   itself caused by a PHP bug (solved in PHP 7 that was released today): [https://bugs.php.net/bug.php?id=55428](https://bugs.php.net/bug.php?id=55428)
 * Technical: we use `ob_start` to load and get content from our view (that users
   can overwrite). One of those plugins/theme uses ob_start with a complete handler
   and the ECP plugin code runs in that handler, thus the fatal error.
 * We are working on finding alternatives.
 *  Plugin Author [cip](https://wordpress.org/support/users/cip/)
 * (@cip)
 * [10 years, 5 months ago](https://wordpress.org/support/topic/fatal-error-when-used/#post-6814553)
 * Could you provide a link to the theme page download (if free)?
 *  Thread Starter [cspub](https://wordpress.org/support/users/cspub/)
 * (@cspub)
 * [10 years, 5 months ago](https://wordpress.org/support/topic/fatal-error-when-used/#post-6814558)
 * no it isn’t free. it is one from a subscription we pay for. here is demo of it
   
   [http://www.shape5.com/demo/index.php?wp/incline](http://www.shape5.com/demo/index.php?wp/incline)
 *  Plugin Author [cip](https://wordpress.org/support/users/cip/)
 * (@cip)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-when-used/#post-6814809)
 * Without access to the theme, we could not help you. Feel free to email it to 
   us to investigate. You can use this support email address: [enhanced.category.pages@gmail.com](https://wordpress.org/support/topic/fatal-error-when-used/enhanced.category.pages@gmail.com?output_format=md)
 *  Plugin Author [cip](https://wordpress.org/support/users/cip/)
 * (@cip)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-when-used/#post-6814812)
 * We have identified the problem to be an incompatibility with “All in One SEO 
   Pack”. We are working on finding a solution to this issue.
 *  Plugin Author [cip](https://wordpress.org/support/users/cip/)
 * (@cip)
 * [10 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-when-used/#post-6814813)
 * Starting with version 2.2.0 (released today) this issue is solved.

Viewing 10 replies - 1 through 10 (of 10 total)

The topic ‘fatal error when used’ is closed to new replies.

 * ![](https://ps.w.org/enhanced-category-pages/assets/icon-256x256.png?rev=1101510)
 * [Enhanced Category Pages](https://wordpress.org/plugins/enhanced-category-pages/)
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 * 10 replies
 * 2 participants
 * Last reply from: [cip](https://wordpress.org/support/users/cip/)
 * Last activity: [10 years, 4 months ago](https://wordpress.org/support/topic/fatal-error-when-used/#post-6814813)
 * Status: resolved