plague error

[Neal Becker]

How do I fix this error?

make build
/usr/bin/plague-client build mercurial mercurial-0_9_4-2_el4 el4
Traceback (most recent call last):
  File "/usr/bin/plague-client", line 420, in <module>
    cli = PlagueClient(os.path.expanduser(cfg_file))
  File "/usr/bin/plague-client", line 85, in __init__
    self._check_api_version(self._server)
  File "/usr/bin/plague-client", line 90, in _check_api_version
    server_ver = server.api_version()
  File "/usr/lib64/python2.5/xmlrpclib.py", line 1147, in __call__
    return self.__send(self.__name, args)
  File "/usr/lib64/python2.5/xmlrpclib.py", line 1437, in __request
    verbose=self.__verbose
  File "/usr/lib64/python2.5/xmlrpclib.py", line 1183, in request
    self.send_content(h, request_body)
  File "/usr/lib64/python2.5/xmlrpclib.py", line 1297, in send_content
    connection.endheaders()
  File "/usr/lib64/python2.5/httplib.py", line 856, in endheaders
    self._send_output()
  File "/usr/lib64/python2.5/httplib.py", line 728, in _send_output
    self.send(msg)
  File "/usr/lib64/python2.5/httplib.py", line 707, in send
    self.sock.sendall(str)
  File "/usr/lib/python2.5/site-packages/plague/SSLConnection.py", line 110, in sendall
    sent = con.send(data, flags)
OpenSSL.SSL.Error: [('SSL routines', 'SSL3_READ_BYTES', 'sslv3 alert certificate expired'), ('SSL routines', 'SSL3_WRITE_BYTES', 'ssl handshake failure')]
make: *** [plague] Error 1