diff --git a/backend/apps/system/api/assistant.py b/backend/apps/system/api/assistant.py
index 6577c3b4..0b1b7cd7 100644
--- a/backend/apps/system/api/assistant.py
+++ b/backend/apps/system/api/assistant.py
@@ -45,7 +45,7 @@ async def info(session: SessionDep, id: str, virtual: Optional[int] = Query(None
 
 @router.get("", response_model=list[AssistantModel])
 async def query(session: SessionDep):
-    list_result = session.exec(select(AssistantModel).order_by(AssistantModel.create_time)).all()
+    list_result = session.exec(select(AssistantModel).order_by(AssistantModel.create_time.asc())).all()
     return list_result
 
 @router.post("")
diff --git a/backend/common/core/sqlbot_cache.py b/backend/common/core/sqlbot_cache.py
index 93aeb27c..196a7275 100644
--- a/backend/common/core/sqlbot_cache.py
+++ b/backend/common/core/sqlbot_cache.py
@@ -164,11 +164,13 @@ def clear_cache(
             )
             
             async with _get_cache_lock(cache_key):
-                await FastAPICache.clear(key=cache_key)
-                result = await func(*args, **kwargs)
-                logging.info(f"Clearing cache for key: {cache_key}")
-                print(f"Clearing cache for key: {cache_key}")
-                return result
+                if await FastAPICache.get_backend().get(cache_key):
+                    await FastAPICache.clear(key=cache_key)
+                    result = await func(*args, **kwargs)
+                    logging.info(f"Clearing cache for key: {cache_key}")
+                    print(f"Clearing cache for key: {cache_key}")
+                    return result
+                return await func(*args, **kwargs)
         
         return wrapper
     return decorator
\ No newline at end of file