你好，插件的回调地址有报错

[ankylau]

https://domain.com/wc-api/WC_Alipay/

错误如下：

Fatal error: Uncaught Error: Call to a member function get_total() on bool in /www/wwwroot/domain.com/wp-content/plugins/woo-alipay/inc/class-wc-alipay.php:355 Stack trace: #0 /www/wwwroot/domain.com/wp-includes/class-wp-hook.php(290): WC_Alipay->check_alipay_response() #1 /www/wwwroot/domain.com/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters() #2 /www/wwwroot/domain.com/wp-includes/plugin.php(484): WP_Hook->do_action() #3 /www/wwwroot/domain.com/wp-content/plugins/woocommerce/includes/class-wc-api.php(161): do_action() #4 /www/wwwroot/domain.com/wp-includes/class-wp-hook.php(292): WC_API->handle_api_requests() #5 /www/wwwroot/domain.com/wp-includes/class-wp-hook.php(316): WP_Hook->apply_filters() #6 /www/wwwroot/domain.com/wp-includes/plugin.php(551): WP_Hook->do_action() #7 /www/wwwroot/domain.com/wp-includes/class-wp.php(388): do_action_ref_array() #8 /www/wwwroot/domain.com/wp-includes/class-wp.php(750): WP->parse_request() #9 /www/wwwroot/domain.com/wp-includes/functions.php(1291): WP->main() # in /www/wwwroot/domain.com/wp-content/plugins/woo-alipay/inc/class-wc-alipay.php on line 355