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

I just know something's amiss - I'm running Ubuntu 17.10 and got an error report, which asked if I wanted to report it, so clicked on "OK" -hopefully, there will be enough information included for you to make something of it AND also eventually resolve it - it seems to me that Ubuntu is getting buggier and buggier as time goes on?

Otherwise, I know squat about what is actually going on - this computer is a Dell notebook that originally had Windows 7 on it, so I ended up taking MS up on upgrading to Win8, not realizing what MS was actually "giving me" was Win8 Beta, and when Win8 was actually released I'd be required to reinstall Windows 7 once again - one I did attempt to reinstall Windows(r) 7 from the supplied by Dell DVD, the driver for it would no longer connect to the internet! So I've been running Ubuntu ever since...

I can't tell you what actual program decided to crash.
This computer has an Intel 2-core processor in it that is multi-tasking as if it were 4-cores. It has a label on it that says "Intel Core(tm)i5, is also energy star compliant and came with Windows7, which WAS able to connect to the internet when I got it...

Thanks in any case,

<email address hidden>

ProblemType: Package
DistroRelease: Ubuntu 17.10
Package: shim-signed 1.32+0.9+1474479173.6c180c6-1ubuntu1
ProcVersionSignature: Ubuntu 4.13.0-25.29-generic 4.13.13
Uname: Linux 4.13.0-25-generic x86_64
.proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] No such file or directory: '/proc/sys/kernel/moksbstate_disabled'
ApportVersion: 2.20.7-0ubuntu3.7
AptOrdering:
 linux-libc-dev:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
BootEFIContents:
 fw
 fwupx64.efi
Date: Tue Jan 23 06:51:22 2018
EFIBootMgr: Error: command ['efibootmgr', '-v'] failed with exit code 2: EFI variables are not supported on this system.
EFITables:

ErrorMessage: subprocess installed post-installation script returned error exit status 1
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: shim-signed
Title: package shim-signed 1.32+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)