Missing access token

[TagBlanc]

I know that this repository in no longer updated, but since this is the only matrix markov chain bot that I found on the internet I hope I'll get reply

After entering user and password in config.cfg and running main.py I'm getting this:

2025-02-09 19:15:17,090 root INFO loading brain
Traceback (most recent call last):
  File "/home/blanc/homemnt/sglypa/matrix-chatbot/main.py", line 443, in main
    bot.run()
    ~~~~~~~^^
  File "/home/blanc/homemnt/sglypa/matrix-chatbot/main.py", line 322, in run
    self.set_display_name(self.config.display_name)
    ~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/blanc/homemnt/sglypa/matrix-chatbot/main.py", line 312, in set_display_name
    self.client.api.set_display_name(self.client.user_id, display_name)
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/blanc/homemnt/sglypa/matrix-chatbot/my-venv/lib/python3.13/site-packages/matrix_client/api.py", line 775, in set_display_name
    return self._send("PUT", "/profile/%s/displayname" % user_id, content)
           ~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/blanc/homemnt/sglypa/matrix-chatbot/my-venv/lib/python3.13/site-packages/matrix_client/api.py", line 748, in _send
    raise MatrixRequestError(
        code=response.status_code, content=response.text
    )
matrix_client.errors.MatrixRequestError: 401: {"errcode":"M_MISSING_TOKEN","error":"Missing access token"}
2025-02-09 19:15:18,588 root WARNING disconnected. Waiting a minute to see if the problem resolves itself...

What can I do to make bot work?