diff --git a/hiddifypanel/panel/commercial/restapi/v2/admin/schema.py b/hiddifypanel/panel/commercial/restapi/v2/admin/schema.py
index 67bcbea0..e6f9685e 100644
--- a/hiddifypanel/panel/commercial/restapi/v2/admin/schema.py
+++ b/hiddifypanel/panel/commercial/restapi/v2/admin/schema.py
@@ -1,6 +1,6 @@
 import uuid
-from apiflask.fields import String, Float, Enum, Date, Integer, Boolean, DateTime
-from apiflask import Schema, fields
+from apiflask.fields import String, Float, Enum, Date, Integer, Boolean, Field
+from apiflask import Schema
 from typing import Any, Mapping
 
 from marshmallow import ValidationError
@@ -11,7 +11,7 @@
 # region user api
 
 
-class FriendlyDateTime(fields.Field):
+class FriendlyDateTime(Field):
     def _serialize(self, value: Any, attr: str | None, obj: Any, **kwargs):
         return hutils.convert.time_to_json(value)
 
@@ -19,7 +19,7 @@ def _deserialize(self, value: Any, attr: str | None, data: Mapping[str, Any] | N
         return hutils.convert.json_to_time(value)
 
 
-class FriendlyUUID(fields.Field):
+class FriendlyUUID(Field):
 
     def _serialize(self, value: Any, attr: str | None, obj: Any, **kwargs):
         if value is None or not hutils.auth.is_uuid_valid(value):
@@ -32,7 +32,7 @@ def _deserialize(self, value: Any, attr: str | None, data: Mapping[str, Any] | N
         try:
             return str(uuid.UUID(value))
         except ValueError:
-            self.fail('Invalid uuid')
+            return self.fail('Invalid uuid')
 
     def _validated(self, value):
         if not hutils.auth.is_uuid_valid(value):