package libnss3-nssdb 2:3.28.4-0ubuntu0.16.04.2 failed to install/upgrade: package libnss3-nssdb is already installed and configured

Im unable to install ....The bug or error is in the summary...please fix it...

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: libnss3-nssdb 2:3.28.4-0ubuntu0.16.04.2
ProcVersionSignature: Ubuntu 4.8.0-56.61~16.04.1-generic 4.8.17
Uname: Linux 4.8.0-56-generic i686
ApportVersion: 2.20.1-0ubuntu2.5
AptdaemonVersion: 1.1.1+bzr982-0ubuntu14
Architecture: i386
Date: Sun Jul 2 06:40:33 2017
DpkgHistoryLog:
 Start-Date: 2017-07-02 06:40:17
 Commandline: aptdaemon role='role-install-packages' sender=':1.108'
 Install: lm-sensors:i386 (1:3.4.0-2, automatic), hardinfo:i386 (0.5.1-1.4ubuntu1)
DuplicateSignature:
 package:libnss3-nssdb:2:3.28.4-0ubuntu0.16.04.2
 Processing triggers for ureadahead (0.100.0-19) ...
 dpkg: error processing package libnss3-nssdb (--configure):
  package libnss3-nssdb is already installed and configured
ErrorMessage: package libnss3-nssdb is already installed and configured
InstallationDate: Installed on 2017-06-24 (7 days ago)
InstallationMedia: Ubuntu-MATE 16.04.2 LTS "Xenial Xerus" - Release i386 (20170215)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.19
SourcePackage: dpkg
Title: package libnss3-nssdb 2:3.28.4-0ubuntu0.16.04.2 failed to install/upgrade: package libnss3-nssdb is already installed and configured
UpgradeStatus: No upgrade log present (probably fresh install)