error in octoprint

2014-04-01 14:13:27,189 - octoprint.server.api - INFO - Performing command: sudo shutdown -r now
2014-04-01 14:14:11,767 - octoprint.gcodefiles - INFO - Migrating metadata if necessary...
2014-04-01 14:14:11,803 - octoprint.gcodefiles - INFO - Updated 0 sets of metadata to new format
2014-04-01 14:14:11,975 - octoprint.server - INFO - Listening on http://0.0.0.0:5000
2014-04-01 14:30:18,500 - octoprint.server.util - INFO - New connection from client: 10.0.0.4
2014-04-01 14:30:50,281 - octoprint.server.util - INFO - Client connection closed
2014-04-01 15:57:41,942 - octoprint.server.util - INFO - New connection from client: 10.0.0.10
2014-04-01 15:57:50,465 - octoprint.server.util - INFO - Client connection closed
2014-04-01 16:39:07,045 - octoprint.server.util - INFO - New connection from client: 10.0.0.4
2014-04-01 16:40:06,022 - octoprint.server - CRITICAL - Now that is embarrassing... Something really really went wrong here. Please report this including the stacktrace below in OctoPrint'$
2014-04-01 16:40:06,082 - octoprint.server - ERROR - Stacktrace follows:
Traceback (most recent call last):
  File "/home/pi/OctoPrint/src/octoprint/server/__init__.py", line 214, in run
    IOLoop.instance().start()
  File "/home/pi/oprint/local/lib/python2.7/site-packages/tornado/ioloop.py", line 627, in start
    event_pairs = self._impl.poll(poll_timeout)
MemoryError