package grub-efi-amd64-signed 1.139+2.04-1ubuntu24 failed to install/upgrade: »installiertes grub-efi-amd64-signed-Skript des Paketes post-installation«-Unterprozess gab den Fehlerwert 2 zurück

[lcs_europe]

I did only a apt upgrade

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: grub-efi-amd64-signed 1.139+2.04-1ubuntu24
ProcVersionSignature: Ubuntu 5.4.0-21.25-generic 5.4.27
Uname: Linux 5.4.0-21-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu26
Architecture: amd64
CasperMD5CheckResult: skip
Date: Fri Apr 10 07:41:47 2020
ErrorMessage: »installiertes grub-efi-amd64-signed-Skript des Paketes post-installation«-Unterprozess gab den Fehlerwert 2 zurück
InstallationDate: Installed on 2020-04-05 (4 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Beta amd64 (20200402)
Python3Details: /usr/bin/python3.8, Python 3.8.2, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: /usr/bin/python3.8, Python 3.8.2, python-is-python3, 3.8.2-3
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.1ubuntu1
SourcePackage: grub2-signed
Title: package grub-efi-amd64-signed 1.139+2.04-1ubuntu24 failed to install/upgrade: »installiertes grub-efi-amd64-signed-Skript des Paketes post-installation«-Unterprozess gab den Fehlerwert 2 zurück
UpgradeStatus: No upgrade log present (probably fresh install)