diff --git a/admin/foundation/JsonResponseFormatter.php b/admin/foundation/JsonResponseFormatter.php
index f259923..55a5ccd 100644
--- a/admin/foundation/JsonResponseFormatter.php
+++ b/admin/foundation/JsonResponseFormatter.php
@@ -46,7 +46,9 @@ class JsonResponseFormatter extends \yii\web\JsonResponseFormatter
                     $value = self::aseEncode($value); // 递归处理子数组
                 } else {
                     if (in_array($key, \Yii::$app->params['aseList'])) {
-                        $value = ase_encode($value); // 加密指定键值
+                        if (is_string($key)) {
+                            $value = ase_encode($value); // 加密指定键值
+                        }
                     }
                 }
             }