package daemontools-run 1:0.76-6ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[jean.pierre.laurens]

At the end of the update ,the installation was in error and I could not stop my computer , each time it reboots.
I have to switch it off.
After power on I have this message

Best regards

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: daemontools-run 1:0.76-6ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic i686
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: i386
Date: Fri Jul 29 22:43:22 2016
Dependencies:
 daemontools 1:0.76-6ubuntu1
 gcc-6-base 6.0.1-0ubuntu1
 libc6 2.23-0ubuntu3
 libgcc1 1:6.0.1-0ubuntu1
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2014-04-23 (828 days ago)
InstallationMedia: Xubuntu 14.04 LTS "Trusty Tahr" - Release i386 (20140416.2)
PackageArchitecture: all
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.1
 apt 1.2.12~ubuntu16.04.1
SourcePackage: daemontools
Title: package daemontools-run 1:0.76-6ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: Upgraded to xenial on 2016-07-29 (0 days ago)

[Launchpad Janitor (janitor)]

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