你好

麻煩清楚描述問題，我不太懂「訂單在結下來的同時」是什麼意思

看動作歷程，你應該是將訂單改為作廢發票的狀態

另外，json_decode 的錯誤並不會造成 PHP fatal error，而是 warning

PHP fatal error 會讓整個網站停在發生重大錯誤或是整個白畫面，warning 不會

PHP Warning: json_decode() expects parameter 1 to be string, array given

抱歉，是取消訂單的時候發生，因為忙著在處理消費者無法結帳

取消訂單的時候，整個頁面會跳技術性問題，信件裡面會顯示以下錯誤：

檔案 /xxxx/wp-content/plugins/cw-ecpay-ei/includes/class-action.php 的第 169 行發生錯誤 (錯誤類型: E_ERROR)。錯誤訊息: Uncaught TypeError: json_decode(): Argument #1 ($json) must be of type string, array given in xxxx/wp-content/plugins/cw-ecpay-ei/includes/class-action.php:169
Stack trace:
#0 xxxx/wp-content/plugins/cw-ecpay-ei/includes/class-action.php(169): json_decode()
#1 xxxx/wp-content/plugins/cw-ecpay-ei/includes/class-action.php(291): cloudwp\ECPay\EI\Action::InvalidReceipt()
#2 xxxx/wp-includes/class-wp-hook.php(310): cloudwp\ECPay\EI\Action::OrderStatusChanged()
#3 xxxx/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()
#4 xxxx/wp-includes/plugin.php(517): WP_Hook->do_action()
#5 xxxx/wp-content/plugins/woocommerce/includes/class-wc-order.php(397): do_action()
#6 xxxx/wp-content/plugins/woocommerce/includes/class-wc-order.php(245): WC_Order->status_transition()
#7xxxx/wp-content/plugins/woocommerce/includes/admin/meta-boxes/class-wc-meta-box-order-data.php(699): WC_Order->save()
#8 xxxx/wp-includes/class-wp-hook.php(310): WC_Meta_Box_Order_Data::save()
#9 xxxx/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()
#10 xxxx/wp-includes/plugin.php(517): WP_Hook->do_action()
#11 xxxx/wp-content/plugins/woocommerce/includes/admin/class-wc-admin-meta-boxes.php(258): do_action()
#12 xxxx/wp-includes/class-wp-hook.php(310): WC_Admin_Meta_Boxes->save_meta_boxes()
#13 xxxx/wp-includes/class-wp-hook.php(332): WP_Hook->apply_filters()
#14 xxxx/wp-includes/plugin.php(517): WP_Hook->do_action()
#15 xxxx/wp-includes/post.php(4715): do_action()
#16 xxxx/wp-includes/post.php(4817): wp_insert_post()
#17 xxxx/wp-admin/includes/post.php(439): wp_update_post()
#18 xxxx/wp-admin/post.php(227): edit_post()
#19 {main}
thrown