Update app.py

app.py

@@ -296,6 +296,7 @@ def download_audio(youtube_url):
     ydl_opts = {
         'format': 'bestaudio/best',
         'outtmpl': output_file,
+        'cookies': './ytdlp.txt'
         'postprocessors': [{
             'key': 'FFmpegExtractAudio',
             'preferredcodec': 'mp3',