package lightdm (not installed) failed to install/upgrade: »installiertes lightdm-Skript des Paketes pre-removal«-Unterprozess wurde durch Signal (Beendet) getötet

[Arber Zela]

Just updated to Ubuntu 20.04 and this error occurred when I logged in again

ProblemType: Package
DistroRelease: Ubuntu 20.04
Package: lightdm (not installed)
ProcVersionSignature: Ubuntu 5.4.0-65.73-generic 5.4.78
Uname: Linux 5.4.0-65-generic x86_64
NonfreeKernelModules: nvidia_modeset nvidia
ApportVersion: 2.20.11-0ubuntu27.16
AptOrdering:
 lightdm:amd64: Remove
 plymouth-theme-ubuntu-text:amd64: Remove
 plymouth:amd64: Remove
 console-common:amd64: Install
 NULL: ConfigurePending
Architecture: amd64
CasperMD5CheckResult: skip
Date: Tue Feb 23 14:40:58 2021
ErrorMessage: »installiertes lightdm-Skript des Paketes pre-removal«-Unterprozess wurde durch Signal (Beendet) getötet
InstallationDate: Installed on 2019-06-03 (631 days ago)
InstallationMedia: Ubuntu 18.04.2 LTS "Bionic Beaver" - Release amd64 (20190210)
Python3Details: /usr/bin/python3.8, Python 3.8.5, python3-minimal, 3.8.2-0ubuntu2
PythonDetails: /usr/bin/python2.7, Python 2.7.18, python-is-python2, 2.7.17-4
RelatedPackageVersions:
 dpkg 1.19.7ubuntu3
 apt 2.0.4
SourcePackage: lightdm
Title: package lightdm (not installed) failed to install/upgrade: »installiertes lightdm-Skript des Paketes pre-removal«-Unterprozess wurde durch Signal (Beendet) getötet
UpgradeStatus: Upgraded to focal on 2021-02-19 (3 days ago)