Sahara returning APIException: Failed to parse response from Sahara: Internal Server Error

I have tried to setup mitaka version of sahara on a ppc64le machine. But the saharaclient is not able to communicate with the sahara server and is throwing the following error -

Traceback (most recent call last):
  File "/usr/lib/python2.7/dist-packages/openstackclient/shell.py", line 118, in run
    ret_val = super(OpenStackShell, self).run(argv)
  File "/usr/lib/python2.7/dist-packages/cliff/app.py", line 255, in run
    result = self.run_subcommand(remainder)
  File "/usr/lib/python2.7/dist-packages/openstackclient/shell.py", line 153, in run_subcommand
    ret_value = super(OpenStackShell, self).run_subcommand(argv)
  File "/usr/lib/python2.7/dist-packages/cliff/app.py", line 374, in run_subcommand
    result = cmd.run(parsed_args)
  File "/usr/lib/python2.7/dist-packages/cliff/display.py", line 92, in run
    column_names, data = self.take_action(parsed_args)
  File "/usr/lib/python2.7/dist-packages/saharaclient/osc/v1/plugins.py", line 48, in take_action
    data = client.plugins.list()
  File "/usr/lib/python2.7/dist-packages/saharaclient/api/plugins.py", line 37, in list
    return self._list('/plugins%s' % query, 'plugins')
  File "/usr/lib/python2.7/dist-packages/saharaclient/api/base.py", line 179, in _list
    self._raise_api_exception(resp)
  File "/usr/lib/python2.7/dist-packages/saharaclient/api/base.py", line 209, in _raise_api_exception
    error_message=msg)
APIException: Failed to parse response from Sahara: Internal Server Error

I could not find anything on sahara-api.log or sahara-engine.log though I have enabled debug and verbose. Could anyone please suggest any solution for it.

Thanks,
Kiriti.