package fail2ban 0.9.7-2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Ashutosh]

sudo apt-get install -f gave this error

ProblemType: Package
DistroRelease: Ubuntu 17.10
Package: fail2ban 0.9.7-2
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.1
AptOrdering: NULL: ConfigurePending
Architecture: amd64
Date: Mon Oct 30 16:51:45 2017
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2016-09-26 (398 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
PackageArchitecture: all
Python3Details: /usr/bin/python3.6, Python 3.6.3, python3-minimal, 3.6.3-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.14, python-minimal, 2.7.14-2ubuntu1
RelatedPackageVersions:
 dpkg 1.18.24ubuntu1
 apt 1.5
SourcePackage: fail2ban
Title: package fail2ban 0.9.7-2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to artful on 2017-10-30 (0 days ago)