iCal server - running but not running

When I try to start up our iCal server Lion Server, it shows as running in Server, but I can't connect to it with a client. Also, if I run a port scan on the server, the port the iCal client is trying to connect to (8008) isn't open. I checked the error logs on the server, and this is what it's showing. I don't know too much about decifering error logs, but it seems as if a python script is giving an error somehow. This just started recently, I didn't notice it until today, but it could have been happening the last few days already. Something with the server locked up a few days ago and we had to do a hard restart, so that might be part of the problem, I suppose. Does anyone have any ideas or fixes for this? Thanks!

2012-04-04 12:28:05-0400 [-] twistd 11.0.0 (/System/Library/Frameworks/Python.framework/Versions/2.7/Resources/Python.app/ Contents/MacOS/Python 2.7.1) starting up.

2012-04-04 12:28:05-0400 [-] reactor class: twext.internet.kqreactor.KQueueReactor.

2012-04-04 12:28:05-0400 [-] calendarserver.accesslog.AMPLoggingFactory starting on "'/var/run/caldavd/caldavd.sock'"

2012-04-04 12:28:05-0400 [-] calendarserver.tap.caldav.CalDAVStatisticsServer starting on "'/var/run/caldavd-stats.sock'"

2012-04-04 12:28:05-0400 [-] [txdav.common.datastore.util.UpgradeDatabaseSchemaService#warn] Beginning database schema check.

2012-04-04 12:28:05-0400 [-] [txdav.common.datastore.util.UpgradeDatabaseSchemaService#warn] Required schema version: 6.

2012-04-04 12:28:05-0400 [-] [txdav.common.datastore.util.UpgradeDatabaseSchemaService#warn] Actual schema version: 6.

2012-04-04 12:28:05-0400 [-] [txdav.common.datastore.util.UpgradeDatabaseSchemaService#warn] Schema version check complete: no upgrade needed.

2012-04-04 12:28:05-0400 [-] [txdav.common.datastore.util.UpgradeDatabaseSchemaService#warn] Database schema check complete, launching database service.

2012-04-04 12:28:06-0400 [PooledMemCacheProtocol,client] Unhandled error in Deferred:

2012-04-04 12:28:06-0400 [PooledMemCacheProtocol,client] Unhandled Error

Traceback (most recent call last):

File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/twi sted/internet/defer.py", line 388, in errback

self._startRunCallbacks(fail)

File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/twi sted/internet/defer.py", line 455, in _startRunCallbacks

self._runCallbacks()

File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/twi sted/internet/defer.py", line 542, in _runCallbacks

current.result = callback(current.result, *args, **kw)

File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/twi sted/internet/defer.py", line 1076, in gotResult

_inlineCallbacks(r, g, deferred)

--- <exception caught here> ---

File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/twi sted/internet/defer.py", line 1018, in _inlineCallbacks

result = result.throwExceptionIntoGenerator(g)

File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/twi sted/python/failure.py", line 350, in throwExceptionIntoGenerator

return g.throw(self.type, self.value, self.tb)

File "/usr/share/caldavd/lib/python/twistedcaldav/upgrade.py", line 984, in startService

yield updater.updateCache(fast=True)

File "/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/twi sted/internet/defer.py", line 1020, in _inlineCallbacks

result = g.send(result)

File "/usr/share/caldavd/lib/python/twistedcaldav/directory/directory.py", line 656, in updateCache

members = pickle.loads(snapshotFile.getContent())

exceptions.EOFError: