package dnet-common 2.64build2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 30

[Omer Aydas]

I am very new at ubuntu and software coding that is why i have no clue about what this bug isç

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: dnet-common 2.64build2
ProcVersionSignature: Ubuntu 4.4.0-62.83-generic 4.4.40
Uname: Linux 4.4.0-62-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
Date: Fri Feb 17 08:15:40 2017
ErrorMessage: subprocess installed post-installation script returned error exit status 30
InstallationDate: Installed on 2017-01-27 (21 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.19
SourcePackage: dnprogs
Title: package dnet-common 2.64build2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 30
UpgradeStatus: No upgrade log present (probably fresh install)