diff --git a/addons/shopro/controller/Pay.php b/addons/shopro/controller/Pay.php
index 2d331f7..2c4fa48 100644
--- a/addons/shopro/controller/Pay.php
+++ b/addons/shopro/controller/Pay.php
@@ -107,6 +107,9 @@ class Pay extends Base
         if (strpos($order_sn, 'TO') !== 0) {
             // 保持 order_sn 不变，避免支付回调时找不到订单
             if ($payment == 'group') {
+                if (!$user) {
+                    $this->error('请先登录', null, 401);
+                }
                 $payment = 'wechat';
                 // 重新计算价格
                 $order_data['total_fee'] = bcsub($order_data['total_fee'], $user->money, 2);
@@ -377,8 +380,9 @@ class Pay extends Base
                 });
 
                 if ($isProcessed) {
-                    // 已经被并发处理过，直接向网关确认成功
-                    $paidOrder = $order->where('order_sn', $out_trade_no)->where('status', '>', 0)->find();
+                    // 已经被并发处理过，直接向网关确认成功（使用全新实例避免前置查询条件残留）
+                    list($paidCheckOrder) = $this->getOrderInstance($out_trade_no);
+                    $paidOrder = $paidCheckOrder->where('order_sn', $out_trade_no)->where('status', '>', 0)->find();
                     if ($paidOrder) {
                         return $pay->success()->send();
                     }