Title: Error during checkout
Last modified: September 16, 2026

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# Error during checkout

 *  [nicolee3](https://wordpress.org/support/users/nicolee3/)
 * (@nicolee3)
 * [1 day, 19 hours ago](https://wordpress.org/support/topic/error-during-checkout-9/)
 * Please look into this error stack trace and fix the issue. The issue appears 
   to be related to the WC Blacklist Manager plugin during the checkout/PayPal payment
   process.[error] 39838#39838: *4444523 FastCGI sent in stderr: “PHP message: is_internal_meta_key
   was called incorrectly. Generic add/update/get meta methods should not be used
   for internal meta data, including “_shipping_phone”. Use getters and setters.
   Backtrace: require(‘wp-blog-header.php’), require_once(‘wp-includes/template-
   loader.php’), do_action(‘template_redirect’), WP_Hook->do_action, WP_Hook->apply_filters,
   WC_AJAX::do_wc_ajax, do_action(‘wc_ajax_checkout’), WP_Hook->do_action, WP_Hook-
   >apply_filters, WC_AJAX::checkout, WC_Checkout->process_checkout, WC_Checkout-
   >create_order, do_action(‘woocommerce_checkout_update_order_meta’), WP_Hook->
   do_action, WP_Hook->apply_filters, WC_Blacklist_Manager_Checkout_Verification_Coordinator-
   >persist_order_evidence, WC_Blacklist_Manager_Checkout_Verification_Coordinator-
   >context_from_order, WC_Blacklist_Manager_Checkout_Verification_Coordinator->
   order_value, WC_Data->get_meta, WC_Data->is_internal_meta_key, wc_doing_it_wrong.
   This message was added in version 3.2.0″ while reading response header from upstream,
   client: 98.97.36.143, server: [familylocket.com](http://familylocket.com/), request:“
   POST /?wc-ajax=checkout HTTP/2.0”, upstream: “fastcgi://unix:/var/run/php8.3-
   fpm-familylocket.sock:”, host: “[familylocket.com:29462](http://familylocket.com:29462/)“,
   referrer: “[https://familylocket.com/checkout/](https://familylocket.com/checkout/)“
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Ferror-during-checkout-9%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Plugin Support [Jacob](https://wordpress.org/support/users/jacobb26/)
 * (@jacobb26)
 * [1 day, 18 hours ago](https://wordpress.org/support/topic/error-during-checkout-9/#post-19021210)
 * Hi,
 * Thanks for providing the detailed stack trace. We’ve reviewed it, and it gives
   us a useful indication of where the issue is occurring during checkout.
 * Since you’re using the Premium version of Blacklist Manager, please open a support
   topic through our official Premium Support portal at:
 * [https://workspace.yoohw.com/](https://workspace.yoohw.com/)
 * WordPress.org requires support for commercial versions of plugins to be handled
   through the plugin developer’s official support channel.
 * Once you open the topic there, we can investigate this against the Premium version
   you’re running and, if necessary, provide you with a hotfix build directly so
   you can test the fix as quickly as possible.
 * Please include a link to this WordPress.org topic when submitting the request
   so we can continue from the information you’ve already provided.
 * Thanks!

Viewing 1 replies (of 1 total)

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to reply to this topic.

 * ![](https://ps.w.org/wc-blacklist-manager/assets/icon-256x256.png?rev=3516963)
 * [Blacklist Manager - WooCommerce Anti-Fraud, Blacklist & Checkout Verification](https://wordpress.org/plugins/wc-blacklist-manager/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wc-blacklist-manager/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wc-blacklist-manager/)
 * [Active Topics](https://wordpress.org/support/plugin/wc-blacklist-manager/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wc-blacklist-manager/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wc-blacklist-manager/reviews/)

 * 1 reply
 * 2 participants
 * Last reply from: [Jacob](https://wordpress.org/support/users/jacobb26/)
 * Last activity: [1 day, 18 hours ago](https://wordpress.org/support/topic/error-during-checkout-9/#post-19021210)
 * Status: not resolved