package wvdial 1.61-4.1build1 failed to install/upgrade: subprocess installed post-installation script was killed by signal (Terminated)

Not sure what I can add. The upgrade stalled and that is all I know. Aardvark Lubuntu should work on this machine with its 2GB RAM.

ProblemType: Package
DistroRelease: Ubuntu 17.10
Package: wvdial 1.61-4.1build1
ProcVersionSignature: Ubuntu 4.4.0-31.50+IntelAtom-linuxium 4.4.13
Uname: Linux 4.4.0-31-linuxium x86_64
ApportVersion: 2.20.7-0ubuntu3.8
Architecture: amd64
Date: Fri Apr 13 06:02:21 2018
ErrorMessage: subprocess installed post-installation script was killed by signal (Terminated)
InstallationDate: Installed on 2018-04-12 (0 days ago)
InstallationMedia: Lubuntu 16.04.1 LTS "Xenial Xerus" Linuxium - Release Intel Atom (20160731)
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 1.5.1
SourcePackage: wvdial
Title: package wvdial 1.61-4.1build1 failed to install/upgrade: subprocess installed post-installation script was killed by signal (Terminated)
UpgradeStatus: Upgraded to artful on 2018-04-13 (0 days ago)