diff --git a/runtime/datamate-python/app/module/annotation/interface/project.py b/runtime/datamate-python/app/module/annotation/interface/project.py
index efe6121..1cd0ce5 100644
--- a/runtime/datamate-python/app/module/annotation/interface/project.py
+++ b/runtime/datamate-python/app/module/annotation/interface/project.py
@@ -225,9 +225,8 @@ async def get_mapping(
     except HTTPException:
         raise
     except Exception as e:
-        import traceback
-        logger.error(f"Error getting mapping: {e}\n{traceback.format_exc()}")
-        raise HTTPException(status_code=500, detail=f"Internal server error: {str(e)}")
+        logger.error(f"Error getting mapping: {e}")
+        raise HTTPException(status_code=500, detail="Internal server error")
 
 @router.get("/by-source/{dataset_id}", response_model=StandardResponse[PaginatedData[DatasetMappingResponse]])
 async def get_mappings_by_source(
diff --git a/runtime/datamate-python/app/module/annotation/service/mapping.py b/runtime/datamate-python/app/module/annotation/service/mapping.py
index 7be5bee..a1aae34 100644
--- a/runtime/datamate-python/app/module/annotation/service/mapping.py
+++ b/runtime/datamate-python/app/module/annotation/service/mapping.py
@@ -49,21 +49,16 @@ class DatasetMappingService:
         mapping = row[0]  # LabelingProject object
         dataset_name = row[1]  # dataset_name from join
 
-        logger.debug(f"_to_response_from_row: mapping.id={mapping.id}")
-
         # Get template_id from mapping
         template_id = getattr(mapping, 'template_id', None)
 
         # 从 configuration JSON 字段中提取 label_config 和 description
         configuration = getattr(mapping, 'configuration', None) or {}
-        logger.debug(f"_to_response_from_row: configuration type={type(configuration)}, value={configuration}")
-
         label_config = None
         description = None
         if isinstance(configuration, dict):
             label_config = configuration.get('label_config')
             description = configuration.get('description')
-        logger.debug(f"_to_response_from_row: label_config={label_config[:100] if label_config else None}...")
 
         # Optionally fetch full template details
         template_response = None
@@ -102,8 +97,6 @@ class DatasetMappingService:
             mapping: LabelingProject ORM object
             include_template: If True, fetch and include full template details
         """
-        logger.debug(f"_to_response: mapping.id={mapping.id}")
-
         # Fetch dataset name
         dataset_name = None
         dataset_id = getattr(mapping, 'dataset_id', None)
@@ -118,14 +111,11 @@ class DatasetMappingService:
 
         # 从 configuration JSON 字段中提取 label_config 和 description
         configuration = getattr(mapping, 'configuration', None) or {}
-        logger.debug(f"_to_response: configuration type={type(configuration)}, value={configuration}")
-
         label_config = None
         description = None
         if isinstance(configuration, dict):
             label_config = configuration.get('label_config')
             description = configuration.get('description')
-        logger.debug(f"_to_response: label_config={label_config[:100] if label_config else None}...")
 
         # Optionally fetch full template details
         template_response = None
@@ -151,7 +141,6 @@ class DatasetMappingService:
             "deleted_at": mapping.deleted_at,
         }
 
-        logger.debug(f"_to_response: response_data keys={response_data.keys()}")
         return DatasetMappingResponse(**response_data)
     
     async def create_mapping(