[Python] Youtube transcript API not working on server

I have a Django web app. This code works perfectly fine on localhost but stops working when I run it on cloud (DigitalOcean) App Platform.

from youtube_transcript_api import YouTubeTranscriptApi, TranscriptsDisabled, NoTranscriptFound, VideoUnavailable

def transcribe(video_url):
video_id = video_url.split("v=")[-1]
logger.debug("Extracted video ID: %s", video_id)

try:
transcript_list = YouTubeTranscriptApi.list_transcripts(video_id)
transcript = None
for transcript_info in transcript_list:
try:
transcript = transcript_info.fetch()
break
except Exception as e:
logger.warning("Error fetching transcript: %s", e, exc_info=True)
continue
if transcript is None:
logger.error("No transcripts available for this video.")
return "No transcripts available for this video."
except TranscriptsDisabled as e:
logger.error("Transcripts are disabled for this video. %s", e, exc_info=True)
return "Transcripts are disabled for this video."
except NoTranscriptFound:
logger.error("No transcript found for this video.")
return "No transcript found for this video."
except VideoUnavailable:
logger.error("Video is unavailable.")
return "Video is unavailable."
except Exception as e:
logger.error("Error in fetching transcript: %s", e, exc_info=True)
return "Error in fetching transcript."

# Concatenate all text from the transcript into a single string
transcription_text = ' '.join([item['text'] for item in transcript])
logger.debug("Transcription text (first 50 characters): %s", transcription_text[:50])

return transcription_text


The part that throws an exception is the line transcript_list = YouTubeTranscriptApi.list_transcripts(video_id).

And it throws a TranscriptsDisabled exception, saying that

Transcripts are disabled for this video.
​

But I do know that the video has transcripts and the code works perfectly fine on localhost as mentioned.

After spending 2 days and trying literally anything I can think of, I still have no solution to this mysterious problem. Anyone who has experienced the same thing and managed to solve it in some way?

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