diff --git a/src/chat/actions/plugin_api/database_api.py b/src/chat/actions/plugin_api/database_api.py
index d8a45aefa..3342a3d6c 100644
--- a/src/chat/actions/plugin_api/database_api.py
+++ b/src/chat/actions/plugin_api/database_api.py
@@ -195,7 +195,8 @@ class DatabaseAPI:
                 return None if single_result else []
             elif query_type in ["create", "update", "delete", "count"]:
                 return None
-                
+            raise "unknown query type"
+
     async def db_raw_query(
         self, 
         sql: str, 
diff --git a/src/chat/focus_chat/expressors/default_expressor.py b/src/chat/focus_chat/expressors/default_expressor.py
index 01a60721b..adb595f17 100644
--- a/src/chat/focus_chat/expressors/default_expressor.py
+++ b/src/chat/focus_chat/expressors/default_expressor.py
@@ -109,6 +109,7 @@ class DefaultExpressor:
         # logger.debug(f"创建思考消息thinking_message：{thinking_message}")
 
         await self.heart_fc_sender.register_thinking(thinking_message)
+        return None
 
     async def deal_reply(
         self,
diff --git a/src/chat/focus_chat/heartFC_sender.py b/src/chat/focus_chat/heartFC_sender.py
index 49d33cc99..528d5802d 100644
--- a/src/chat/focus_chat/heartFC_sender.py
+++ b/src/chat/focus_chat/heartFC_sender.py
@@ -88,10 +88,10 @@ class HeartFCSender:
         """
         if not message.chat_stream:
             logger.error("消息缺少 chat_stream，无法发送")
-            return
+            raise "消息缺少 chat_stream，无法发送"
         if not message.message_info or not message.message_info.message_id:
             logger.error("消息缺少 message_info 或 message_id，无法发送")
-            return
+            raise "消息缺少 message_info 或 message_id，无法发送"
 
         chat_id = message.chat_stream.stream_id
         message_id = message.message_info.message_id
diff --git a/src/chat/focus_chat/replyer/default_replyer.py b/src/chat/focus_chat/replyer/default_replyer.py
index 78727968a..a9424a910 100644
--- a/src/chat/focus_chat/replyer/default_replyer.py
+++ b/src/chat/focus_chat/replyer/default_replyer.py
@@ -120,6 +120,7 @@ class DefaultReplyer:
         # logger.debug(f"创建思考消息thinking_message：{thinking_message}")
 
         await self.heart_fc_sender.register_thinking(thinking_message)
+        return None
 
     async def deal_reply(
         self,
diff --git a/src/chat/utils/timer_calculator.py b/src/chat/utils/timer_calculator.py
index af8058a59..df2b9f778 100644
--- a/src/chat/utils/timer_calculator.py
+++ b/src/chat/utils/timer_calculator.py
@@ -111,11 +111,13 @@ class Timer:
         async def async_wrapper(*args, **kwargs):
             with self:
                 return await func(*args, **kwargs)
+            return None
 
         @wraps(func)
         def sync_wrapper(*args, **kwargs):
             with self:
                 return func(*args, **kwargs)
+            return None
 
         wrapper = async_wrapper if asyncio.iscoroutinefunction(func) else sync_wrapper
         wrapper.__timer__ = self  # 保留计时器引用