package shim-signed 1.51+15.4-0ubuntu9 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1

[Aleksandr Zenevich]

h

ProblemType: Package
DistroRelease: Ubuntu 21.04
Package: shim-signed 1.51+15.4-0ubuntu9
ProcVersionSignature: Ubuntu 5.11.0-37.41-generic 5.11.22
Uname: Linux 5.11.0-37-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
.proc.sys.kernel.moksbstate_disabled: Error: [Errno 2] Нет такого файла или каталога: '/proc/sys/kernel/moksbstate_disabled'
ApportVersion: 2.20.11-0ubuntu65
Architecture: amd64
BootEFIContents:
 BOOTX64.CSV
 grub.cfg
 grubx64.efi
 mmx64.efi
 shimx64.efi
CasperMD5CheckResult: unknown
Date: Sat Oct 2 00:14:56 2021
EFITables:
 кас 02 00:36:22 asp1rant3-N750JK kernel: efi: EFI v2.31 by American Megatrends
 кас 02 00:36:22 asp1rant3-N750JK kernel: efi: ACPI 2.0=0xc9ea5000 ACPI=0xc9ea5000 SMBIOS=0xf04c0 MOKvar=0xbdad1000
 кас 02 00:36:22 asp1rant3-N750JK kernel: secureboot: Secure boot disabled
 кас 02 00:36:22 asp1rant3-N750JK kernel: secureboot: Secure boot disabled
ErrorMessage: installed shim-signed package post-installation script subprocess returned error exit status 1
Python3Details: /usr/bin/python3.9, Python 3.9.4, python3-minimal, 3.9.4-1
PythonDetails: N/A
RelatedPackageVersions:
 dpkg 1.20.9ubuntu1
 apt 2.2.3
SecureBoot: 6 0 0 0 0
SourcePackage: shim-signed
Title: package shim-signed 1.51+15.4-0ubuntu9 failed to install/upgrade: installed shim-signed package post-installation script subprocess returned error exit status 1
UpgradeStatus: No upgrade log present (probably fresh install)