package shim-signed 1.32~14.04.2+0.9+1474479173.6c180c6-1ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1

[stan hsu]

the error message popped up when i'm trying to update the ubuntu

ProblemType: Package
DistroRelease: Ubuntu 14.04
Package: shim-signed 1.32~14.04.2+0.9+1474479173.6c180c6-1ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-93.116~14.04.1-generic 4.4.79
Uname: Linux 4.4.0-93-generic x86_64
.proc.sys.kernel.moksbstate.disabled: 0
ApportVersion: 2.14.1-0ubuntu3.25
Architecture: amd64
Date: Mon Sep 11 23:00:37 2017
DuplicateSignature: package:shim-signed:1.32~14.04.2+0.9+1474479173.6c180c6-1ubuntu1:subprocess installed post-installation script returned error exit status 1
EFITables:
 Sep 11 22:57:25 stanhsu-X550JD kernel: [ 0.000000] efi: EFI v2.31 by American Megatrends
 Sep 11 22:57:25 stanhsu-X550JD kernel: [ 0.000000] efi: ACPI 2.0=0xc9ea2000 ACPI=0xc9ea2000 SMBIOS=0xcaf58418
 Sep 11 22:57:25 stanhsu-X550JD kernel: [ 0.000000] Secure boot enabled
ErrorMessage: subprocess installed post-installation script returned error exit status 1
InstallationDate: Installed on 2017-09-11 (0 days ago)
InstallationMedia: Ubuntu 14.04.5 LTS "Trusty Tahr" - Release amd64 (20160803)
RelatedPackageVersions:
 dpkg 1.17.5ubuntu5.7
 apt 1.0.1ubuntu2.17
SecureBoot: 6 0 0 0 1
SourcePackage: shim-signed
Title: package shim-signed 1.32~14.04.2+0.9+1474479173.6c180c6-1ubuntu1 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)