diff --git a/fb_graphql_scraper/facebook_graphql_scraper.py b/fb_graphql_scraper/facebook_graphql_scraper.py
index aadc292..770d170 100644
--- a/fb_graphql_scraper/facebook_graphql_scraper.py
+++ b/fb_graphql_scraper/facebook_graphql_scraper.py
@@ -105,6 +105,11 @@ def check_progress(self, days_limit: int = 61, display_progress:bool=True):
                             tmp_creation_array.append(int(creation_time))
                     except Exception as e: # 可以直接略過, 表示此graphql內容並非貼文
                         pass
+        # **防止空列表错误**
+        if not tmp_creation_array:
+            print("Warning: No post timestamps found. Skipping progress check.")
+            return False
+            
         diff_days = days_difference_from_now(
             tmp_creation_array=tmp_creation_array)
         if self.pre_diff_days == diff_days:
@@ -346,4 +351,4 @@ def requests_flow(self, doc_id:str, fb_username_or_userid:str, days_limit:int, p
             "fb_username_or_userid": fb_username_or_userid,
             "profile": profile_feed,
             "data": final_res,
-        }
\ No newline at end of file
+        }