diff --git a/project_evaluation_analysis/generate_task_static_history.py b/project_evaluation_analysis/generate_task_static_history.py
index 1b5e5d5..2a49cc8 100644
--- a/project_evaluation_analysis/generate_task_static_history.py
+++ b/project_evaluation_analysis/generate_task_static_history.py
@@ -41,6 +41,8 @@ SELECT date from ai_task_static_history where date>'{begin_date_str}' GROUP BY d
     if last_date is None:
         last_date_str=(today-timedelta(days=60)).strftime('%Y-%m-%d')
     else:
+        config.logger.info(f"{last_date}")
+        last_date=datetime.strptime(last_date,"%Y-%m-%d")
         last_date_str=last_date.strftime('%Y-%m-%d')
     #last_date_str='2023-02-01'
     if last_date_str==today_str:
@@ -117,4 +119,4 @@ SELECT repo_id,count(repo_id) as open_count from issue  where is_closed=false an
 
 if __name__ == '__main__':
     # 生成测试数据
-    record_task_history()
\ No newline at end of file
+    record_task_history()