update

app/service/user/cashBack.js

@@ -47,7 +47,7 @@ class CashBackService extends CrudService {
     }
     const { inviter, _id: order_detail } = orderDetail;
     if (!inviter) return;
-    const obj = { inviter, order_detail, money: rmoney, time: moment().format('YYYY-MM-DD HH:mm:ss') };
+    const obj = { inviter: _.get(inviter, '_id'), order_detail, money: rmoney, time: moment().format('YYYY-MM-DD HH:mm:ss') };
     tran.insert('CashBack', obj);
   }
 }