A code that change the group link every 5 mins not the invite link only the original group link to fragment links and I need you to be able to make the bot in the group will change the link not the owner of the group

` import logging
import time
from telethon import TelegramClient
from telethon.errors import UsernameOccupiedError

 # Set up logging
 logging.basicConfig(
 format='%(asctime)s - %(name)s - %(levelname)s - %(message)s',
 level=logging.INFO
 )
 logger = logging.getLogger(__name__)

 # Define your API ID, API Hash, bot token, and group username details
 API_ID = 'YOUR_API_ID'
 API_HASH = 'YOUR_API_HASH'
 PHONE_NUMBER = 'YOUR_PHONE_NUMBER'  # The phone number associated with your account
 GROUP_USERNAME = 'initial_group_link'
 NEW_GROUP_USERNAMES = ['new_link_1', 'new_link_2', 'new_link_3']

 # Initialize the Telegram client
 client = TelegramClient('session_name', API_ID, API_HASH)

 async def change_group_link(new_username):
 try:
 await client.connect()
    if not await client.is_user_authorized():
        await client.send_code_request(PHONE_NUMBER)
        await client.sign_in(PHONE_NUMBER, input('Enter the code: '))

    # Attempt to update the group's username
    try:
        await client(functions.channels.UpdateUsernameRequest(
            channel=GROUP_USERNAME,
            username=new_username
        ))
        logger.info(f"Changed group username to: {new_username}")
    except UsernameOccupiedError:
        logger.error(f"Username {new_username} is already taken.")
    except Exception as e:
        logger.error(f"Failed to change group username: {e}")
 finally:
    await client.disconnect()

 def main():
     for new_username in NEW_GROUP_USERNAMES:
    client.loop.run_until_complete(change_group_link(new_username))
    time.sleep(300)  # Wait for 5 minutes before changing again

 if __name__ == '__main__':
     main()`

I did it but why is it not working?