package xl2tpd 1.3.6+dfsg-4ubuntu0.16.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Leonid]

on exit from sleep mode

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: xl2tpd 1.3.6+dfsg-4ubuntu0.16.04.1
ProcVersionSignature: Ubuntu 4.4.0-79.100-generic 4.4.67
Uname: Linux 4.4.0-79-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.6
Architecture: amd64
Date: Thu Jun 22 00:22:29 2017
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2016-11-18 (215 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.2
 apt 1.2.20
SourcePackage: xl2tpd
Title: package xl2tpd 1.3.6+dfsg-4ubuntu0.16.04.1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.xl2tpd.xl2tpd.conf: [deleted]