telethon says telethon.errors.common.MultiError: ([FloodWaitError('A wait of 27 seconds is required (caused by GetParticipantsRequest)'), None, None, FloodWaitError('A wait of 27 seconds )
In your scraper.py script remove "aggressive=True" from this line of code below ->
all_participants = client.get_participants(target_group, aggressive=True)
to
all_participants = client.get_participants(target_group)