package grub-efi-amd64-signed 1.142.5+2.04-1ubuntu26.3 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 127

[Jerome]

couldnt update.

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: grub-efi-amd64-signed 1.142.5+2.04-1ubuntu26.3
ProcVersionSignature: Ubuntu 5.4.0-42.46-generic 5.4.44
Uname: Linux 5.4.0-42-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.8
Architecture: amd64
CasperMD5CheckResult: skip
Date: Mon Sep 14 11:32:47 2020
ErrorMessage: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 127
InstallationDate: Installed on 2020-06-29 (76 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.2ubuntu0.1
SourcePackage: grub2-signed
Title: package grub-efi-amd64-signed 1.142.5+2.04-1ubuntu26.3 failed to install/upgrade: installed grub-efi-amd64-signed package post-installation script subprocess returned error exit status 127
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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