package avahi-daemon 0.6.32~rc+dfsg-1ubuntu2.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

couldnt update ubuntu

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: avahi-daemon 0.6.32~rc+dfsg-1ubuntu2.2
ProcVersionSignature: Ubuntu 4.15.0-34.37~16.04.1-generic 4.15.18
Uname: Linux 4.15.0-34-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
Date: Mon Sep 24 11:05:47 2018
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2018-04-20 (158 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.4
 apt 1.2.27
SourcePackage: avahi
Title: package avahi-daemon 0.6.32~rc+dfsg-1ubuntu2.2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.avahi.avahi-daemon.conf: 2018-04-20T14:34:19.762995