error executing the example

[paketecuento]

After successful installation, the example is throwing the following error:

python chat_paper.py --query "chatgpt robot" --filter_keys "chatgpt robot" --max_results 1

Key word: learning reinforcement
Query: chatgpt robot
Sort: Relevance
all search:
Traceback (most recent call last):
  File "/Users/paco/Downloads/ChatPaper-main/chat_paper.py", line 420, in <module>
    main(args=args)
  File "/Users/paco/Downloads/ChatPaper-main/chat_paper.py", line 399, in main
    filter_results = reader1.filter_arxiv(max_results=args.max_results)
  File "/Users/paco/Downloads/ChatPaper-main/chat_paper.py", line 51, in filter_arxiv
    for index, result in enumerate(search.results()):
  File "/Users/paco/opt/miniconda3/lib/python3.9/site-packages/arxiv/arxiv.py", line 591, in results
    page_url = self._format_url(search, offset, page_size)
  File "/Users/paco/opt/miniconda3/lib/python3.9/site-packages/arxiv/arxiv.py", line 627, in _format_url
    url_args = search._url_args()
  File "/Users/paco/opt/miniconda3/lib/python3.9/site-packages/arxiv/arxiv.py", line 481, in _url_args
    "sortBy": self.sort_by.value,
AttributeError: 'str' object has no attribute 'value'