uptade bug everything

[Lucimara Camargo]

I bought a new computer with Ubuntu 20.04 and I have gotten this message in the top-right area:

“An Error occurred, please run Package Manager from the right-click menu or apt-get in terminal to see what's wrong. The error message was: ‘Unknown Error: ‘<class ‘KeyError’>’ (“The cache has no package named ‘ubuntu-pro-client-l10n:amd64’”)’. This usually means that your installed packages unmet dependencies.”

And everytime uptades install nothing is visible properly and I get no sound.
The command "mater" on alsamixer disapears.
So I my only option is to use recovery mode. But I don't want to do this everytime. It happened four times already.
Can you help me?

ProblemType: Bug
DistroRelease: Ubuntu 20.04
Package: ubuntu-release-upgrader-core 1:20.04.40
ProcVersionSignature: Ubuntu 5.15.0-67.74~20.04.1-generic 5.15.85
Uname: Linux 5.15.0-67-generic x86_64
ApportVersion: 2.20.11-0ubuntu27.25
Architecture: amd64
CasperMD5CheckResult: skip
CrashDB: ubuntu
CurrentDesktop: ubuntu:GNOME
Date: Sun Jun 23 09:41:29 2024
DistributionChannelDescriptor:
 # This is the distribution channel descriptor for the OEM CDs
 # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor
 canonical-oem-somerville-focal-amd64-20200502-85
InstallationDate: Installed on 2024-06-23 (0 days ago)
InstallationMedia: Ubuntu 20.04 "Focal" - Build amd64 LIVE Binary 20200502-05:58
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=pt_BR:
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=pt_BR.UTF-8
 SHELL=/bin/bash
SourcePackage: ubuntu-release-upgrader
Symptom: ubuntu-release-upgrader
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.update-manager.release-upgrades: 2020-05-02T02:40:59