diff --git a/src/sites/manager.py b/src/sites/manager.py
index 9fb45b9..d634fe0 100644
--- a/src/sites/manager.py
+++ b/src/sites/manager.py
@@ -155,7 +155,8 @@ class MangaManager:
             for title,url,created_at in zip(manga_list.title, manga_list.url, manga_list.created_at):
                 title = FileNaming.chinese_file_name(title)
                 save_manga = MangaUtils().search_manga(title)
-                created = save_manga.get('created_at', None)
+                if save_manga != None:
+                   created = save_manga.get('created_at', None)
                 if created != None and created_at == created:
                     logger.info(f"{save_manga} 已存在")
                 else: