package unattended-upgrades 0.90ubuntu0.10 failed to install/upgrade: subprocess installed post-installation script returned error exit status 10

[Himangshu]

I accidentally deleted the dpkg folder.

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: unattended-upgrades 0.90ubuntu0.10
ProcVersionSignature: Ubuntu 4.15.0-45.48~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-45-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
Date: Mon Feb 25 10:48:27 2019
ErrorMessage: subprocess installed post-installation script returned error exit status 10
InstallationDate: Installed on 2018-08-06 (202 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.5
 apt 1.2.29ubuntu0.1
SourcePackage: unattended-upgrades
Title: package unattended-upgrades 0.90ubuntu0.10 failed to install/upgrade: subprocess installed post-installation script returned error exit status 10
UpgradeStatus: No upgrade log present (probably fresh install)