diff --git a/lib/api/config_api.py b/lib/api/config_api.py
index c2e6bb5..6fcd592 100644
--- a/lib/api/config_api.py
+++ b/lib/api/config_api.py
@@ -23,6 +23,7 @@ def get_configs():
             config['selected_fields'] = json.loads(config['selected_fields'])
             config['sum_fields'] = json.loads(config['sum_fields']) if config['sum_fields'] else []
             config['time_periods'] = json.loads(config['time_periods']) if config.get('time_periods') else {}
+            config['field_custom_names'] = json.loads(config['field_custom_names']) if config.get('field_custom_names') else {}
         
         log_info(f'[配置API] 获取到 {len(configs)} 条配置', 'api')
         return jsonify({'success': True, 'data': configs})
@@ -186,7 +187,6 @@ def update_config(config_id):
                 '''
                 delete_params = [config_id, old_split_type] + list(removed_values)
                 try:
-                    from lib.db import execute_update
                     execute_update(delete_sql, tuple(delete_params))
                     log_info(f'[配置API] 拆分值变化，已清理{len(removed_values)}个旧拆分的求和数据', 'api')
                 except Exception as e: