Could not initialize the package information

E:can not open /var/lib/apt/lists/us.archive.ubuntu.com_ubuntu_dists_focal-backports_InRelease - fopen (13: Permission denied), E:The package lists or status file could not be parsed or opened.

Wed Jan 17 8:30 AM 2024
Ubuntu 20.04

Just before I sent this at 9:10 AM Software Updater sent a software update. I will install software. You decide if this is important or not.

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: update-manager 1:20.04.10.18
ProcVersionSignature: Ubuntu 5.15.0-91.101~20.04.1-generic 5.15.131
Uname: Linux 5.15.0-91-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.27
Aptdaemon:

Architecture: amd64
CasperMD5CheckResult: skip
CurrentDesktop: ubuntu:GNOME
Date: Wed Jan 17 08:59:07 2024
InstallationDate: Installed on 2021-10-06 (832 days ago)
InstallationMedia: Ubuntu 20.04 LTS "Focal Fossa" - Release amd64 (20200423)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: update-manager
UpgradeStatus: No upgrade log present (probably fresh install)