package otrs2 2.4.7-1 failed to install/upgrade:

Binary package hint: otrs2

During upgrade to 10.04 from 9.04 this error was created. I had removed otrs2 from my system, but apparently it did not remove everything.

ProblemType: Package
DistroRelease: Ubuntu 10.04
Package: otrs2 2.4.7-1
ProcVersionSignature: Ubuntu 2.6.31-21.59-generic
Uname: Linux 2.6.31-21-generic i686
NonfreeKernelModules: nvidia
Architecture: i386
Date: Sun May 2 17:38:07 2010
ErrorMessage:
 ErrorMessage: subprocess installed post-installation script returned error exit status 1
PackageArchitecture: all
SourcePackage: otrs2
Title: package otrs2 2.4.7-1 failed to install/upgrade: