package python-poker-network 1.7.7-3.2ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

I have no idea why?

ProblemType: Package
DistroRelease: Ubuntu 11.04
Package: python-poker-network 1.7.7-3.2ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-11.50-generic 2.6.38.8
Uname: Linux 2.6.38-11-generic x86_64
NonfreeKernelModules: nvidia
Architecture: amd64
Date: Thu Sep 22 20:12:21 2011
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
PackageArchitecture: all
SourcePackage: poker-network
Title: package python-poker-network 1.7.7-3.2ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)