Update app.py

app.py

@@ -127,12 +127,18 @@ async def create_or_use_thread_and_send_videos(message, keywords, video_urls):
         await thread.send(url)
 
 async def find_existing_thread(message):
-    # 채널의 모든 쓰레드 가져오기
-    threads = await message.channel.threads()
-    # 주어진 메시지와 연관된 쓰레드를 찾기
-    for thread in threads:
-        if thread.id == message.id:
+    # 채널의 모든 활성 쓰레드 가져오기
+    active_threads = await message.channel.active_threads()
+    for thread in active_threads:
+        if thread.starter_message_id == message.id:
             return thread
+    
+    # 채널의 모든 보관된 쓰레드 가져오기
+    archived_threads = await message.channel.archived_threads().flatten()
+    for thread in archived_threads:
+        if thread.starter_message_id == message.id:
+            return thread
+
     return None
 
 if __name__ == "__main__":