Fatal error: Uncaught Error: Call to a member function is_on_sale() on boolean in /var/www/web29572663/html/www/wp-content/plugins/WooCommerce-Sale-Category-master/class-wc-integration-sale-category.php:72 Stack trace: #0 /var/www/web29572663/html/www/wp-includes/class-wp-hook.php(286): WC_Integration_Sale_Category->assign_sale_category('94048', 4691, '_amzaff_hits', 4584) #1 /var/www/web29572663/html/www/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters('', Array) #2 /var/www/web29572663/html/www/wp-includes/plugin.php(453): WP_Hook->do_action(Array) #3 /var/www/web29572663/html/www/wp-includes/meta.php(284): do_action('updated_postmet...', '94048', 4691, '_amzaff_hits', 4584) #4 /var/www/web29572663/html/www/wp-includes/post.php(1934): update_metadata('post', 4691, '_amzaff_hits', 4584, '') #5 /var/www/web29572663/html/www/wp-content/plugins/woozone/modules/stats_prod/init.php(121): update_post_meta(4691, '_amzaff_hits', 4584) #6 /var/www/web29572663/html/www/wp-includes/class-wp-hook.php(286): WooZoneStatsProd in /var/www/web29572663/html/www/wp-content/plugins/WooCommerce-Sale-Category-master/class-wc-integration-sale-category.php on line 72