package grub-pc 2.02-2ubuntu8.7 failed to install/upgrade: installed grub-pc package post-installation script subprocess returned error exit status 10

[João Silva]

sometimes, while system is upgrading, that error message appears:

package grub-pc 2.02-2ubuntu8.7 failed to install/upgrade: installed grub-pc package post-installation script subprocess returned error exit status 10

System: Lubuntu 18.04

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: grub-pc 2.02-2ubuntu8.7
ProcVersionSignature: Ubuntu 4.15.0-38.41-generic 4.15.18
Uname: Linux 4.15.0-38-generic i686
ApportVersion: 2.20.9-0ubuntu7.4
Architecture: i386
Date: Sat Oct 27 19:08:39 2018
DuplicateSignature:
 package:grub-pc:2.02-2ubuntu8.7
 Setting up grub-pc (2.02-2ubuntu8.7) ...
 dpkg: error processing package grub-pc (--configure):
  installed grub-pc package post-installation script subprocess returned error exit status 10
ErrorMessage: installed grub-pc package post-installation script subprocess returned error exit status 10
InstallationDate: Installed on 2018-04-16 (196 days ago)
InstallationMedia: Lubuntu 17.10 "Artful Aardvark" - Release i386 (20180105)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.15.0-38-generic root=UUID=ef7cafef-3c84-4c8d-8188-ac6fa6134730 ro locale=pt_PT quiet splash vt.handoff=1
Python3Details: /usr/bin/python3.6, Python 3.6.6, unpackaged
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, unpackaged
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2
 apt 1.6.6
SourcePackage: grub2
Title: package grub-pc 2.02-2ubuntu8.7 failed to install/upgrade: installed grub-pc package post-installation script subprocess returned error exit status 10
UpgradeStatus: Upgraded to bionic on 2018-07-25 (96 days ago)

[Marc Deslauriers (mdeslaur)]

Thanks for taking the time to report this bug and helping to make Ubuntu better. We appreciate the difficulties you are facing, but this appears to be a "regular" (non-security) bug. I have unmarked it as a security issue since this bug does not show evidence of allowing attackers to cross privilege boundaries nor directly cause loss of data/privacy. Please feel free to report any other bugs you may find.

[João Silva (sirjams)]

Thanks Mark Deslauriers for your feed back. Although, this is happening everytime system updates.
Is there any way to ignore or delete this error?
Thankyou for your services,
   SirJams