Error from earth

Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/zmqstream.py", line 414, in _run_callback
    callback(*args, **kwargs)
  File "earth.py", line 54, in handleHeartBeat
    beat.ParseFromString(message)
  File "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/message.py", line 179, in ParseFromString
    self.MergeFromString(serialized)
  File "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/python_message.py", line 755, in MergeFromString
    if self._InternalParse(serialized, 0, length) != length:
  File "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/python_message.py", line 774, in InternalParse
    (tag_bytes, new_pos) = local_ReadTag(buffer, pos)
  File "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/decoder.py", line 172, in ReadTag
    while ord(buffer[pos]) & 0x80:
TypeError: ord() expected a character, but string of length 2 found
ERROR:root:Uncaught exception, closing connection.
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/zmqstream.py", line 440, in _handle_events
    self._handle_recv()
  File "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/zmqstream.py", line 472, in _handle_recv
    self._run_callback(callback, msg)
  File "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/zmqstream.py", line 414, in _run_callback
    callback(*args, **kwargs)
  File "earth.py", line 54, in handleHeartBeat
    beat.ParseFromString(message)
  File "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/message.py", line 179, in ParseFromString
    self.MergeFromString(serialized)
  File "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/python_message.py", line 755, in MergeFromString
    if self._InternalParse(serialized, 0, length) != length:
  File "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/python_message.py", line 774, in InternalParse
    (tag_bytes, new_pos) = local_ReadTag(buffer, pos)
  File "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/decoder.py", line 172, in ReadTag
    while ord(buffer[pos]) & 0x80:
TypeError: ord() expected a character, but string of length 2 found
ERROR:root:Exception in I/O handler for fd <zmq.core.socket.Socket object at 0x923320c>
Traceback (most recent call last):
  File "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/ioloop.py", line 346, in start
    self._handlers[fd](fd, events)
  File "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/zmqstream.py", line 440, in _handle_events
    self._handle_recv()
  File "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/zmqstream.py", line 472, in _handle_recv
    self._run_callback(callback, msg)
  File "/usr/local/lib/python2.7/dist-packages/pyzmq-2.2.0.1-py2.7-linux-i686.egg/zmq/eventloop/zmqstream.py", line 414, in _run_callback
    callback(*args, **kwargs)
  File "earth.py", line 54, in handleHeartBeat
    beat.ParseFromString(message)
  File "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/message.py", line 179, in ParseFromString
    self.MergeFromString(serialized)
  File "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/python_message.py", line 755, in MergeFromString
    if self._InternalParse(serialized, 0, length) != length:
  File "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/python_message.py", line 774, in InternalParse
    (tag_bytes, new_pos) = local_ReadTag(buffer, pos)
  File "/usr/local/lib/python2.7/dist-packages/protobuf-2.4.1-py2.7.egg/google/protobuf/internal/decoder.py", line 172, in ReadTag
    while ord(buffer[pos]) & 0x80:
TypeError: ord() expected a character, but string of length 2 found