package gosa 2.7.4+reloaded2-9ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[KingOss]

During the upgrade from Ubuntu 15.10 to Ubuntu 16.04 the package "gosa" cannot be installed

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: gosa 2.7.4+reloaded2-9ubuntu1
ProcVersionSignature: Ubuntu 4.2.0-35.40-generic 4.2.8-ckt5
Uname: Linux 4.2.0-35-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
Date: Tue Apr 26 17:51:25 2016
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2014-04-18 (739 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1
 apt 1.2.10ubuntu1
SourcePackage: gosa
Title: package gosa 2.7.4+reloaded2-9ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to xenial on 2016-04-26 (0 days ago)