Upgrader application crashes during upgrade session

[Enbiya Türedi]

Main fail was "Upgrading could not be calculated"

ProblemType: Bug
DistroRelease: Ubuntu 23.04
Package: ubuntu-release-upgrader-core 1:23.04.7
ProcVersionSignature: Ubuntu 6.2.0-37.38-generic 6.2.16
Uname: Linux 6.2.0-37-generic x86_64
ApportVersion: 2.26.1-0ubuntu2.1
Architecture: amd64
CasperMD5CheckResult: unknown
CrashDB: ubuntu
CrashReports:
 640:0:0:23490:2023-11-30 10:34:40.764197662 +0300:2023-11-30 10:34:40.764197662 +0300:/var/crash/_usr_bin_do-release-upgrade.0.crash
 640:0:0:105601:2023-11-30 09:35:13.629435506 +0300:2023-11-30 09:35:13.629435506 +0300:/var/crash/_usr_bin_lubuntu-upgrader.0.crash
CurrentDesktop: LXQt
Date: Thu Nov 30 10:51:13 2023
InstallationDate: Installed on 2021-10-01 (789 days ago)
InstallationMedia: Lubuntu 21.04 "Hirsute Hippo" - Release amd64 (20210420)
PackageArchitecture: all
SourcePackage: ubuntu-release-upgrader
UpgradeStatus: Upgraded to lunar on 2023-11-30 (0 days ago)