Traceback (most recent call last):
  File "/usr/lib/python3.12/site-packages/cherrypy/_cprequest.py", line 638, in respond
    self._do_respond(path_info)
  File "/usr/lib/python3.12/site-packages/cherrypy/_cprequest.py", line 697, in _do_respond
    response.body = self.handler()
                    ^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/cherrypy/lib/encoding.py", line 223, in __call__
    self.body = self.oldhandler(*args, **kwargs)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/cherrypy/_cpdispatch.py", line 54, in __call__
    return self.callable(*self.args, **self.kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/ipsilon/util/page.py", line 85, in __call__
    return op(*args, **kwargs).encode('utf-8')
           ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/ipsilon/providers/common.py", line 105, in root
    return op(*args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/ipsilon/providers/openid/auth.py", line 297, in GET
    return self.auth(**kwargs)
           ^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/ipsilon/providers/openid/auth.py", line 59, in auth
    raise cherrypy.HTTPError(e.code, e.message)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.12/site-packages/cherrypy/_cperror.py", line 378, in __init__
    raise ValueError('status must be between 400 and 599.')