Error on custom_orders_table_usage_is_enabled function in order detail

With 3.5 plugin version, when I go to a WooCommerce order page this error is sent to my mail (my site is in italian):

Un errore di E_ERROR è stato causato nella linea 229 del file
/xxxxxxxx/public_html/wp-content/plugins/woo-advanced-shipment-tracking/includes/class-wc-advanced-shipment-tracking.php.
Messaggio di errore: Uncaught Error: Call to a member function
custom_orders_table_usage_is_enabled() on null in
/xxxxxxxx/public_html/wp-content/plugins/woo-advanced-shipment-tracking/includes/class-wc-advanced-shipment-tracking.php:229
Stack trace:
#0 /xxxxxxxx/public_html/wp-includes/class-wp-hook.php(310):
WC_Advanced_Shipment_Tracking_Actions->add_meta_box('shop_order')
#1 /xxxxxxxx/public_html/wp-includes/class-wp-hook.php(332):
WP_Hook->apply_filters(NULL, Array)
#2 /xxxxxxxx/public_html/wp-includes/plugin.php(517):
WP_Hook->do_action(Array)
#3 /xxxxxxxx/public_html/wp-admin/includes/meta-boxes.php(1599):
do_action('add_meta_boxes', 'shop_order', Object(WP_Post))
#4 /xxxxxxxx/public_html/wp-admin/edit-form-advanced.php(271):
register_and_do_post_meta_boxes(Object(WP_Post))
#5 /xxxxxxxx/public_html/wp-admin/post.php(206):
require('/home/greencoun...')
#6 {main}
  thrown

My WP version is 6.1.1 and PHP version is 7.4.

• This topic was modified 3 years, 6 months ago by Scribit.