sttime修复

app/JsonRpc/OrderService.php

@@ -146,8 +146,8 @@ class OrderService implements OrderServiceInterface
         }
 
         // 处理时间范围查询
-        $start = $data['sttime'];
-        $end = $data['edtime'];
+        $start = $data['sttime']??'';
+        $end = $data['edtime']??'';
 
         // 查询数据并分页
         $query = Order::where($where)