package grub-pc 2.06-2ubuntu7.2 failed to install/upgrade: installed grub-pc package post-installation script subprocess returned error exit status 20

[Boanerges Genove]

I don't understand error exactly

ProblemType: Package
DistroRelease: Ubuntu 22.04
Package: grub-pc 2.06-2ubuntu7.2
ProcVersionSignature: Ubuntu 5.19.0-32.33~22.04.1-generic 5.19.17
Uname: Linux 5.19.0-32-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu82.3
Architecture: amd64
CasperMD5CheckResult: pass
Date: Mon Apr 3 07:38:04 2023
DuplicateSignature:
 package:grub-pc:2.06-2ubuntu7.2
 Setting up grub-pc (2.06-2ubuntu7.2) ...
 dpkg: error processing package grub-pc (--configure):
  installed grub-pc package post-installation script subprocess returned error exit status 20
ErrorMessage: installed grub-pc package post-installation script subprocess returned error exit status 20
InstallationDate: Installed on 2022-10-12 (172 days ago)
InstallationMedia: Ubuntu 22.04.1 LTS "Jammy Jellyfish" - Release amd64 (20220809.1)
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-5.19.0-32-generic root=UUID=1fb80f07-00c1-49b9-89d5-87660738c7d8 ro quiet splash loglevel=3
Python3Details: /usr/bin/python3.10, Python 3.10.6, python3-minimal, 3.10.6-1~22.04
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.21.1ubuntu2.1
 apt 2.4.9
SourcePackage: grub2
Title: package grub-pc 2.06-2ubuntu7.2 failed to install/upgrade: installed grub-pc package post-installation script subprocess returned error exit status 20
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

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