package otrs2 2.4.7-1ubuntu0.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

apt-get remove otrs2
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages will be REMOVED:
  otrs2
0 upgraded, 0 newly installed, 1 to remove and 0 not upgraded.
1 not fully installed or removed.
After this operation, 36.8MB disk space will be freed.
Do you want to continue [Y/n]? y
(Reading database ... 461671 files and directories currently installed.)
Removing otrs2 ...
hostname: Name or service not known
dpkg: error processing otrs2 (--remove):
 subprocess installed pre-removal script returned error exit status 1
hostname: Name or service not known
dpkg: error while cleaning up:
 subprocess installed post-installation script returned error exit status 1
Errors were encountered while processing:
 otrs2
E: Sub-process /usr/bin/dpkg returned an error code (1)

ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: otrs2 2.4.7-1ubuntu0.1
ProcVersionSignature: Ubuntu 2.6.32-33.72-generic 2.6.32.41+drm33.18
Uname: Linux 2.6.32-33-generic i686
NonfreeKernelModules: wl
AptOrdering: otrs2: Configure
Architecture: i386
Date: Wed Sep 28 11:59:45 2011
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4)
PackageArchitecture: all
SourcePackage: otrs2
Title: package otrs2 2.4.7-1ubuntu0.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1