twistd crashed with IOError in _func()

[StamPit]

When installing Apple Calendar Server (caldavd) i receive error messages in /var/log/caldavd/error.log (see attachment)

ProblemType: Crash
Architecture: amd64
DistroRelease: Ubuntu 8.10
ExecutablePath: /usr/bin/twistd
InterpreterPath: /usr/bin/python2.5
NonfreeKernelModules: nvidia
Package: python-twisted-core 8.1.0-2ubuntu1
PackageArchitecture: all
ProcAttrCurrent: unconfined
ProcCmdline: /usr/bin/python /usr/bin/twistd -u caldavd -g caldavd -n caldav -f /etc/caldavd/caldavd.plist -o ProcessType=Slave -o BindAddresses=localhost -o PIDFile=None -o ErrorLogFile=None -o MultiProcess/ProcessCount=1 -o BindHTTPPorts=8008
ProcEnviron:

PythonArgs: ['/usr/bin/twistd', '-u', 'caldavd', '-g', 'caldavd', '-n', 'caldav', '-f', '/etc/caldavd/caldavd.plist', '-o', 'ProcessType=Slave', '-o', 'BindAddresses=localhost', '-o', 'PIDFile=None', '-o', 'ErrorLogFile=None', '-o', 'MultiProcess/ProcessCount=1', '-o', 'BindHTTPPorts=8008']
SourcePackage: twisted
Title: twistd crashed with IOError in _func()
Uname: Linux 2.6.27-4-generic x86_64
UserGroups:

[dino99 (9d9)]

This version has died long ago; no more supported