Title: Some undefined function is causing IPN errors, need fix/patch please
Last modified: August 24, 2016

---

# Some undefined function is causing IPN errors, need fix/patch please

 *  Resolved [dealbas](https://wordpress.org/support/users/dealbas/)
 * (@dealbas)
 * [11 years, 1 month ago](https://wordpress.org/support/topic/some-undefined-function-is-causing-ipn-errors-need-fixpatch-please/)
 * The page I refer to is: [http://www.hopeforthree.org/?simple_cart_ipn=1](http://www.hopeforthree.org/?simple_cart_ipn=1)
   
   I am see a Fatal error message:
 * Fatal Error: Call to undefined function wpc_handle_paypal_ipn() in /var/www/vhosts/
   hopeforthree.org/httpdocs/wp-content/plugins/wordpress-simple-paypal-shopping-
   cart/wp_shopping_cart_misc_functions.php on line 28
 * It appears that the wordpress-simple-paypal-shopping-cart is calling a function
   that is not defined which may be the reason why the IPN is failing.
 * How can I fix it???
 * [https://wordpress.org/plugins/wordpress-simple-paypal-shopping-cart/](https://wordpress.org/plugins/wordpress-simple-paypal-shopping-cart/)

Viewing 2 replies - 16 through 17 (of 17 total)

[←](https://wordpress.org/support/topic/some-undefined-function-is-causing-ipn-errors-need-fixpatch-please/?output_format=md)
[1](https://wordpress.org/support/topic/some-undefined-function-is-causing-ipn-errors-need-fixpatch-please/?output_format=md)
2

 *  Thread Starter [dealbas](https://wordpress.org/support/users/dealbas/)
 * (@dealbas)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/some-undefined-function-is-causing-ipn-errors-need-fixpatch-please/page/2/#post-5993872)
 * Okay, I’m beginning to think that too. Im going to go ahead and mark this resolved
   because I dont think its being caused by your plugin(its weird that the plugin
   is on the error though). Anyway, your plugin works great, keep up the good work!
 *  Plugin Contributor [mbrsolution](https://wordpress.org/support/users/mbrsolution/)
 * (@mbrsolution)
 * [10 years, 7 months ago](https://wordpress.org/support/topic/some-undefined-function-is-causing-ipn-errors-need-fixpatch-please/page/2/#post-5993873)
 * I am happy to hear that you like the plugin 🙂 If you have any other issues simply
   start a new support thread.
 * If you don’t mind once you find out what was wrong can you post it here. Perhaps
   your solution might help others.
 * Kind regards
 * PS Enjoy the plugin 😉

Viewing 2 replies - 16 through 17 (of 17 total)

[←](https://wordpress.org/support/topic/some-undefined-function-is-causing-ipn-errors-need-fixpatch-please/?output_format=md)
[1](https://wordpress.org/support/topic/some-undefined-function-is-causing-ipn-errors-need-fixpatch-please/?output_format=md)
2

The topic ‘Some undefined function is causing IPN errors, need fix/patch please’
is closed to new replies.

 * ![](https://ps.w.org/wordpress-simple-paypal-shopping-cart/assets/icon-128x128.
   png?rev=2722490)
 * [Simple Shopping Cart](https://wordpress.org/plugins/wordpress-simple-paypal-shopping-cart/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wordpress-simple-paypal-shopping-cart/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wordpress-simple-paypal-shopping-cart/)
 * [Active Topics](https://wordpress.org/support/plugin/wordpress-simple-paypal-shopping-cart/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wordpress-simple-paypal-shopping-cart/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wordpress-simple-paypal-shopping-cart/reviews/)

## Tags

 * [fatal error](https://wordpress.org/support/topic-tag/fatal-error/)
 * [ipn](https://wordpress.org/support/topic-tag/ipn/)
 * [undefined function](https://wordpress.org/support/topic-tag/undefined-function/)

 * 17 replies
 * 3 participants
 * Last reply from: [mbrsolution](https://wordpress.org/support/users/mbrsolution/)
 * Last activity: [10 years, 7 months ago](https://wordpress.org/support/topic/some-undefined-function-is-causing-ipn-errors-need-fixpatch-please/page/2/#post-5993873)
 * Status: resolved