KeyError: 'done' about smpl HOT 3 CLOSED

Traceback (most recent call last):
  File "/home/ubuntu/anaconda2/envs/smpl/lib/python2.7/multiprocessing/process.py", line 267, in _bootstrap
    self.run()
  File "/home/ubuntu/anaconda2/envs/smpl/lib/python2.7/multiprocessing/process.py", line 114, in run
    self._target(*self._args, **self._kwargs)
  File "/home/ubuntu/smpl/distributed/parameter_server.py", line 489, in train_hyperedge
    sess_id = self.init_session(log=log, log_path=log_path)
  File "/home/ubuntu/smpl/distributed/parameter_server.py", line 648, in init_session
    peers = [x for x in self.establish_clique(sess, log=log) if len(x) > 0]
  File "/home/ubuntu/smpl/distributed/parameter_server.py", line 875, in establish_clique
    unique = self.get_unique_clique(self.peers, log=log)
  File "/home/ubuntu/smpl/distributed/parameter_server.py", line 844, in get_unique_clique
    active = self.active_sessions(log=log)
  File "/home/ubuntu/smpl/distributed/parameter_server.py", line 820, in active_sessions
    if json.loads(sess)['done']:
KeyError: 'done'

Traceback (most recent call last):
  File "/home/ubuntu/smpl/distributed/parameter_server.py", line 272, in receive
    resp = self.route({"addr": addr, "length": expected, "content": json.loads(data)})
  File "/home/ubuntu/smpl/distributed/parameter_server.py", line 309, in route
    return self.get_parameters(*args)
  File "/home/ubuntu/smpl/distributed/parameter_server.py", line 1104, in get_parameters
    return model['parameters'], model['accuracy']
KeyError: 'parameters'

Process Process-28:
Traceback (most recent call last):
  File "/home/ubuntu/anaconda2/envs/smpl/lib/python2.7/multiprocessing/process.py", line 267, in _bootstrap
    self.run()
  File "/home/ubuntu/anaconda2/envs/smpl/lib/python2.7/multiprocessing/process.py", line 114, in run
    self._target(*self._args, **self._kwargs)
  File "/home/ubuntu/smpl/distributed/parameter_server.py", line 465, in train_hyperedge
    sess_id = self.init_session(log=log, log_path=log_path)
  File "/home/ubuntu/smpl/distributed/parameter_server.py", line 675, in init_session
    if best['alias'] != sess['me']['alias']:
KeyError: 'me'