package xymon-client 4.3.7-1ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[Nibbs]

This flashes up every time the system starts, then every 5mins or so

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: xymon-client 4.3.7-1ubuntu2
ProcVersionSignature: Ubuntu 3.13.0-45.74-generic 3.13.11-ckt13
Uname: Linux 3.13.0-45-generic x86_64
NonfreeKernelModules: wl
ApportVersion: 2.14.1-0ubuntu3.6
Architecture: amd64
Date: Tue Feb 10 14:41:06 2015
DuplicateSignature: package:xymon-client:4.3.7-1ubuntu2:subprocess installed post-installation script returned error exit status 1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2012-02-19 (1086 days ago)
InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
SourcePackage: xymon
Title: package xymon-client 4.3.7-1ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to trusty on 2014-08-18 (176 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Adrian Garry (garry-adrian)]

My competence level nil. Need detailed instructions. At work in 10 mins will return tomorrow.