Title: PHP Fatal error
Last modified: January 19, 2020

---

# PHP Fatal error

 *  Resolved [sraj@wordpressfreelance.net](https://wordpress.org/support/users/srajwordpressfreelancenet/)
 * (@srajwordpressfreelancenet)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/php-fatal-error-196/)
 * Hi team,
 * I tried this on 2 fresh installs and on both the installs I have this issue.
   
   When checked the error logs its the same on both.
 *     ```
       [19-Jan-2020 17:00:05 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function mb_strpos() in /home/wpfreelance/public_html/accounting/wp-content/plugins/cartflows/modules/checkout/classes/class-cartflows-checkout-markup.php:916
       Stack trace:
       #0 /home/wpfreelance/public_html/accounting/wp-includes/class-wp-hook.php(288): Cartflows_Checkout_Markup->get_ajax_endpoint('/?wc-ajax=%%end...', '%%endpoint%%')
       #1 /home/wpfreelance/public_html/accounting/wp-includes/plugin.php(206): WP_Hook->apply_filters('/?wc-ajax=%%end...', Array)
       #2 /home/wpfreelance/public_html/accounting/wp-content/plugins/woocommerce/includes/class-wc-ajax.php(33): apply_filters('woocommerce_aja...', '/?wc-ajax=%%end...', '%%endpoint%%')
       #3 /home/wpfreelance/public_html/accounting/wp-content/plugins/woocommerce/includes/class-wc-frontend-scripts.php(540): WC_AJAX::get_endpoint('%%endpoint%%')
       #4 /home/wpfreelance/public_html/accounting/wp-content/plugins/woocommerce/includes/class-wc-frontend-scripts.php(436): WC_Frontend_Scripts::get_script_data('wc-cart-fragmen...')
       #5 /home/wpf in /home/wpfreelance/public_html/accounting/wp-content/plugins/cartflows/modules/checkout/classes/class-cartflows-checkout-markup.php on line 916
       [19-Jan-2020 17:02:27 UTC] PHP Fatal error:  Uncaught Error: Call to undefined function mb_strpos() in /home/wpfreelance/public_html/accounting/wp-content/plugins/cartflows/modules/checkout/classes/class-cartflows-checkout-markup.php:916
       ```
   
 * Any help? Thanks in advance.
 * Regards,
    Srinivas

Viewing 5 replies - 1 through 5 (of 5 total)

 *  Thread Starter [sraj@wordpressfreelance.net](https://wordpress.org/support/users/srajwordpressfreelancenet/)
 * (@srajwordpressfreelancenet)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/php-fatal-error-196/#post-12341795)
 * Forgot to mention that I am trying to use this with Learndash
 *  Thread Starter [sraj@wordpressfreelance.net](https://wordpress.org/support/users/srajwordpressfreelancenet/)
 * (@srajwordpressfreelancenet)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/php-fatal-error-196/#post-12341885)
 * Some more details:
 * I am not using any payment gateway. I choose offline method. This is with integration
   through woocommerce.
 *  Plugin Support [CartFlows Team](https://wordpress.org/support/users/cartflows/)
 * (@cartflows)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/php-fatal-error-196/#post-12342659)
 * Hello [@srajwordpressfreelancenet](https://wordpress.org/support/users/srajwordpressfreelancenet/)
 * I am sorry for the inconvenience caused.
     This fatal error is due to the mb_strpos()
   is unable to execute. The mb_strpos() is an PHP extension function which is not
   enabled/installed on your hosting/server.  To solve this, you need to enable
   this mb_strpos() extension on your hosting/server or ask your hosting/server 
   provider to enable it.  I hope this helps you.  Please let me know how it goes. 
   I would be happy to help you.
 *  Thread Starter [sraj@wordpressfreelance.net](https://wordpress.org/support/users/srajwordpressfreelancenet/)
 * (@srajwordpressfreelancenet)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/php-fatal-error-196/#post-12343984)
 * Hi Team,
 * This was very helpful. Thank you very much. It solved the issue.
 * Regards,
    Srinivas
 *  Plugin Support [CartFlows Team](https://wordpress.org/support/users/cartflows/)
 * (@cartflows)
 * [6 years, 4 months ago](https://wordpress.org/support/topic/php-fatal-error-196/#post-12346949)
 * Hello [@srajwordpressfreelancenet](https://wordpress.org/support/users/srajwordpressfreelancenet/)
 * You are most welcome.
 * I am glad that it is working for you.
 * Feel free to get in touch in case you need more assistance.
 * I will be happy to assist you.

Viewing 5 replies - 1 through 5 (of 5 total)

The topic ‘PHP Fatal error’ is closed to new replies.

 * ![](https://ps.w.org/cartflows/assets/icon-256x256.gif?rev=3298049)
 * [CartFlows – Funnel Builder & Checkout Plugin for WooCommerce](https://wordpress.org/plugins/cartflows/)
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 * 5 replies
 * 2 participants
 * Last reply from: [CartFlows Team](https://wordpress.org/support/users/cartflows/)
 * Last activity: [6 years, 4 months ago](https://wordpress.org/support/topic/php-fatal-error-196/#post-12346949)
 * Status: resolved