Update-Manager chrashes but with crash message but continue doing his job

Binary package hint: update-manager

Feisty AMD64 - daily build at E6600 conroe dual core system

i only got an crash message, but the programm does his job ?

ProblemType: Crash
Architecture: amd64
Date: Mon Mar 26 12:58:04 2007
DistroRelease: Ubuntu 7.04
ExecutablePath: /usr/bin/update-manager
InterpreterPath: /usr/bin/python2.5
Package: update-manager 1:0.59.8
PackageArchitecture: all
ProcCmdline: /usr/bin/python2.5 /usr/bin/update-manager
ProcCwd: /home/canislupa
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/bin/X11:/usr/games
 LANG=en_US.UTF-8
 SHELL=/bin/bash
PythonArgs: ['/usr/bin/update-manager']
SourcePackage: update-manager
Traceback:
 Traceback (most recent call last):
   File "/usr/lib/python2.5/site-packages/UpdateManager/Core/MetaRelease.py", line 171, in download
     f=open(self.METARELEASE_FILE,"w+")
 IOError: [Errno 13] Permission denied: '/home/canislupa/.update-manager/meta-release'
Uname: Linux canislupa-desktop 2.6.20-12-generic #2 SMP Wed Mar 21 19:34:23 UTC 2007 x86_64 GNU/Linux