Title: wordpress crash
Last modified: April 4, 2018

---

# wordpress crash

 *  Resolved [crosstalk](https://wordpress.org/support/users/crosstalk/)
 * (@crosstalk)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/wordpress-chat/)
 * when I activate plug-in i get this
 * Fatal error: Call to undefined function WatsonConv\boolval() in /home/evanwebsite2016/
   public_html/wp-content/plugins/conversation-watson/includes/frontend.php on line
   167
 * The worst part the plug-in CRASHES the website. I have gotten this elsewhere,
   so not the first time.
    -  This topic was modified 8 years, 1 month ago by [crosstalk](https://wordpress.org/support/users/crosstalk/).
    -  This topic was modified 8 years, 1 month ago by [crosstalk](https://wordpress.org/support/users/crosstalk/).

Viewing 4 replies - 1 through 4 (of 4 total)

 *  Plugin Contributor [cognitiveclass](https://wordpress.org/support/users/cognitiveclass/)
 * (@cognitiveclass)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/wordpress-chat/#post-10147727)
 * Hi,
 * This error is cause by lack of compatibility with older versions of PHP. We will
   address this compatibility issue in the next release, but we recommend using 
   PHP version 5.5 or greater to avoid future issues.
 *  Thread Starter [crosstalk](https://wordpress.org/support/users/crosstalk/)
 * (@crosstalk)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/wordpress-chat/#post-10147735)
 * Thanks, this is for a client so
    1) is there a way to determine what version 
   of PHP is operating? and, 2) since we are not the owner of the website update/
   upgrade the PHP
 * regards, tc
 *  Plugin Author [Leon Katsnelson](https://wordpress.org/support/users/katsnelson/)
 * (@katsnelson)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/wordpress-chat/#post-10211315)
 * Thank you for reporting the problem. Because of your suggestion we re adding 
   a check for the PHP version. If the plugin is installed on a WP site with non-
   supported version of PHP it will produce a clear warning. This will be available
   in the upcoming refresh in a couple of days.
 *  Plugin Author [Leon Katsnelson](https://wordpress.org/support/users/katsnelson/)
 * (@katsnelson)
 * [8 years, 1 month ago](https://wordpress.org/support/topic/wordpress-chat/#post-10213653)
 * We just released version 0.6.4 of the plugin. Among the new features is the warning
   that will advise you if you are running on an unsupported back level version 
   of PHP.

Viewing 4 replies - 1 through 4 (of 4 total)

The topic ‘wordpress crash’ is closed to new replies.

 * ![](https://ps.w.org/conversation-watson/assets/icon-256x256.png?rev=1684465)
 * [Chatbot with IBM watsonx Assistant](https://wordpress.org/plugins/conversation-watson/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/conversation-watson/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/conversation-watson/)
 * [Active Topics](https://wordpress.org/support/plugin/conversation-watson/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/conversation-watson/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/conversation-watson/reviews/)

 * 4 replies
 * 3 participants
 * Last reply from: [Leon Katsnelson](https://wordpress.org/support/users/katsnelson/)
 * Last activity: [8 years, 1 month ago](https://wordpress.org/support/topic/wordpress-chat/#post-10213653)
 * Status: resolved