Site Experiencing Technical Issue

Hi,
I would like to report this Error from December 6. My website is fine, but WordPress recommended letting you know this has caused an error/check whether there are any updates:

WordPress caught an error with the plugin WooCommerce PDF Invoices & Packing Slips.
Page where the error was caught: /wp-admin/admin-ajax.php

WordPress version 5.8.2
Current theme: Flatsome Child (version 3.0)
Current plugin: WooCommerce PDF Invoices & Packing Slips (version 2.10.6)
PHP version 7.4.26

Error Details
=============
An error of type E_ERROR was caused in line 20 of the file /srv/htdocs/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/class-wcpdf-settings-documents.php. Error message: Uncaught Error: Call to a member function init_settings() on bool in /srv/htdocs/wp-content/plugins/woocommerce-pdf-invoices-packing-slips/includes/class-wcpdf-settings-documents.php:20
Stack trace:
#0 /wordpress/core/5.8.2/wp-includes/class-wp-hook.php(303): WPO\WC\PDF_Invoices\Settings_Documents->init_settings(”)
#1 /wordpress/core/5.8.2/wp-includes/class-wp-hook.php(327): WP_Hook->apply_filters(NULL, Array)
#2 /wordpress/core/5.8.2/wp-includes/plugin.php(470): WP_Hook->do_action(Array)
#3 /wordpress/core/5.8.2/wp-admin/admin-ajax.php(45): do_action(‘admin_init’)
#4 {main}
thrown