package cryptsetup 2:1.6.6-5ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

after restarting a window always pop up saying report problem

ProblemType: Package
DistroRelease: Ubuntu 16.04
Package: cryptsetup 2:1.6.6-5ubuntu2
ProcVersionSignature: Ubuntu 4.8.0-51.54~16.04.1-generic 4.8.17
Uname: Linux 4.8.0-51-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
Date: Tue Sep 25 14:48:44 2018
DpkgHistoryLog:
 Start-Date: 2018-09-25 14:48:27
 Commandline: apt install plasma-nm
 Requested-By: ictschool (1000)
 Install: libkf5networkmanagerqt6:amd64 (5.18.0-0ubuntu1.4, automatic), libkf5modemmanagerqt6:amd64 (5.18.0-0ubuntu1, automatic), plasma-nm:amd64 (4:5.5.5-0ubuntu1), libstoken1:amd64 (0.90-1, automatic), libtommath0:amd64 (0.42.0-1.2, automatic), libopenconnect5:amd64 (7.06-2build2, automatic), libqca-qt5-2:amd64 (2.1.1-0ubuntu2, automatic), libtomcrypt0:amd64 (1.17-7ubuntu0.1, automatic), qml-module-org-kde-kcoreaddons:amd64 (5.18.0-0ubuntu1, automatic), libqca-qt5-2-plugins:amd64 (2.1.1-0ubuntu2, automatic)
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2017-05-05 (510 days ago)
InstallationMedia: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
RelatedPackageVersions:
 dpkg 1.18.4ubuntu1.2
 apt 1.2.20
SourcePackage: cryptsetup
Title: package cryptsetup 2:1.6.6-5ubuntu2 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)
crypttab: # <target name> <source device> <key file> <options>