Title: critical error
Last modified: April 2, 2026

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# critical error

 *  Resolved [deniskokotov](https://wordpress.org/support/users/deniskokotov/)
 * (@deniskokotov)
 * [1 month, 2 weeks ago](https://wordpress.org/support/topic/critical-error-868/)
 * **Неустранимая ошибка**: Неперехваченная ошибка: вызов неопределенной функции
   woocommerce_register_additional_checkout_field() в /home/host1878833/myasko-khakasii.
   ru/htdocs/www/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/
   Frontend.php: Трассировка стека 362: # 0 /home/host1878833/myasko-khakasii.ru/
   htdocs/www/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/
   Frontend.php(54) : WPO\IPS\Интерфейс->checkout_field_display_checkout_block_field()#
   1 /home/host1878833/myasko-khakasii.ru/htdocs/www/wp-content/plugins/woocommerce-
   pdf-invoices-packing-slips/includes/Frontend.php(21) : WPO\IPS\ Интерфейс->__построить()#
   2 /home/host1878833/myasko-khakasii.ru/htdocs/www/wp-content/plugins/woocommerce-
   pdf-invoices-packing-slips/woocommerce-pdf-invoices-packingslips.php(178): WPO\
   IPS\ интерфейс::экземпляр() #3 /home/host1878833/myasko-khakasii.ru/htdocs/www/
   wp-content/plugins/woocommerce-pdf-invoices-packing-slips/woocommerce-pdf-invoices-
   packingslips.php(197) : WPO_WCPDF-> включает() #4 /главная страница/host1878833/
   myasko-khakasii.ru/htdocs/www/ in **/home/host1878833/myasko-khakasii.ru/htdocs/
   www/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/Frontend.
   php **на линии **362**
 * На этом сайте произошла критическая ошибка. Пожалуйста, ознакомьтесь с инструкциями
   в почтовом ящике администратора сайта.
 * [Узнайте больше о решении проблем с WordPress.](https://wordpress.org/documentation/article/faq-troubleshooting/)
 * when I tried to set additional fields on the invoice, I got this error, and I
   can’t get into wordpress or the site anymore. What to do?
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fcritical-error-868%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

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

 *  Plugin Contributor [dwpriv](https://wordpress.org/support/users/dwpriv/)
 * (@dwpriv)
 * [1 month, 2 weeks ago](https://wordpress.org/support/topic/critical-error-868/#post-18870147)
 * How were you trying to add these details?
 *  Thread Starter [deniskokotov](https://wordpress.org/support/users/deniskokotov/)
 * (@deniskokotov)
 * [1 month, 2 weeks ago](https://wordpress.org/support/topic/critical-error-868/#post-18870792)
 * I ticked the boxes on the form and clicked accept changes.
 *  Plugin Contributor [dwpriv](https://wordpress.org/support/users/dwpriv/)
 * (@dwpriv)
 * [1 month, 1 week ago](https://wordpress.org/support/topic/critical-error-868/#post-18872997)
 * Could you share a screenshot of the form you’re referring to, please?
 *  Thread Starter [deniskokotov](https://wordpress.org/support/users/deniskokotov/)
 * (@deniskokotov)
 * [1 month, 1 week ago](https://wordpress.org/support/topic/critical-error-868/#post-18873378)
 * now I can’t take a screenshot. I logged into the hosting and renamed the folder
   with the plugin, after that the site went up and I was able to log into wordpress.
   Then I deleted your plugin. I think it’s all about the incompatibility of your
   plugin and my version of wordpress. Have a nice day.

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

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to reply to this topic.

 * ![](https://ps.w.org/woocommerce-pdf-invoices-packing-slips/assets/icon-256x256.
   png?rev=2189942)
 * [PDF Invoices & Packing Slips for WooCommerce](https://wordpress.org/plugins/woocommerce-pdf-invoices-packing-slips/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/woocommerce-pdf-invoices-packing-slips/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/woocommerce-pdf-invoices-packing-slips/)
 * [Active Topics](https://wordpress.org/support/plugin/woocommerce-pdf-invoices-packing-slips/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/woocommerce-pdf-invoices-packing-slips/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/woocommerce-pdf-invoices-packing-slips/reviews/)

 * 4 replies
 * 2 participants
 * Last reply from: [deniskokotov](https://wordpress.org/support/users/deniskokotov/)
 * Last activity: [1 month, 1 week ago](https://wordpress.org/support/topic/critical-error-868/#post-18873378)
 * Status: resolved