Не удается выполнить безопасное обновление, поэтому он отключен? [дубликат]

Я был по всей этой ветке, и ничто из того, что я читал или пробовал, не исправляет это для меня. У меня было установлено вино, но я удалил его, потому что не хотел с ним связываться. Похоже, это поставило меня под угрозу. Когда я выполняю sudo apt update , я получаю:

Err:1 http://your.repo.domain/repository disco InRelease
  Could not resolve 'your.repo.domain'
Ign:2 http://dl.google.com/linux/chrome/deb stable InRelease               
Get:3 https://dl.winehq.org/wine-builds/ubuntu disco InRelease [6,255 B]       
Ign:4 http://us.archive.ubuntu.com/ubuntu artful-updates InRelease             
Err:5 http://us.archive.ubuntu.com/ubuntu artful-updates Release               
  404  Not Found [IP: 91.189.91.26 80]
Hit:6 http://dl.google.com/linux/chrome/deb stable Release
Hit:7 http://archive.ubuntu.com/ubuntu disco InRelease
Hit:8 http://archive.ubuntu.com/ubuntu disco-updates InRelease
Get:10 https://dl.winehq.org/wine-builds/ubuntu disco/main i386 Packages [42.1 kB]
Hit:11 http://archive.ubuntu.com/ubuntu disco-backports InRelease
Hit:12 http://archive.ubuntu.com/ubuntu disco-security InRelease      
Get:13 https://dl.winehq.org/wine-builds/ubuntu disco/main amd64 Packages [39.5 kB]
Reading package lists... Done       
E: The repository 'http://us.archive.ubuntu.com/ubuntu artful-updates Release' no longer has a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Я использовал , чтобы хорошо разбираться в Linux, но это было примерно 10 лет назад, и теперь я понятия не имею, что делаю . Может кто-нибудь объяснить мне, как это исправить, как будто мне было 5? Я сменил свой сервер на главный.

Я удалил вино из Другого программного обеспечения, и он сказал, что нужно перезагрузить программное обеспечение, что я и сделал, но он не сказал: E: Репозиторий 'http://us.archive.ubuntu.com/ubuntu artful-updates Release' не имеет файла выпуска. При поиске источников я вижу это . Я сейчас выполняю резервное копирование, как было предложено в другом потоке, может ли кто-нибудь помочь мне, что делать дальше? Большое спасибо!!

ОБНОВЛЕНИЕ: содержимое /etc/apt/sources.list

# deb cdrom:[Ubuntu 19.04 _Disco Dingo_ - Release amd64 (20190416)]/ disco main restricted

# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.
deb http://archive.ubuntu.com/ubuntu disco main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu/ disco main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://archive.ubuntu.com/ubuntu disco-updates main restricted
# deb-src http://us.archive.ubuntu.com/ubuntu/ disco-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team. Also, please note that software in universe WILL NOT receive any
## review or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu disco universe
# deb-src http://us.archive.ubuntu.com/ubuntu/ disco universe
deb http://archive.ubuntu.com/ubuntu disco-updates universe
# deb-src http://us.archive.ubuntu.com/ubuntu/ disco-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu 
## team, and may not be under a free licence. Please satisfy yourself as to 
## your rights to use the software. Also, please note that software in 
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://archive.ubuntu.com/ubuntu disco multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ disco multiverse
deb http://archive.ubuntu.com/ubuntu disco-updates multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ disco-updates multiverse

## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
deb http://archive.ubuntu.com/ubuntu disco-backports main restricted universe multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ disco-backports main restricted universe multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository.
## This software is not part of Ubuntu, but is offered by Canonical and the
## respective vendors as a service to Ubuntu users.
# deb http://archive.canonical.com/ubuntu disco partner
# deb-src http://archive.canonical.com/ubuntu disco partner

deb http://archive.ubuntu.com/ubuntu disco-security main restricted
# deb-src http://security.ubuntu.com/ubuntu disco-security main restricted
deb http://archive.ubuntu.com/ubuntu disco-security universe
# deb-src http://security.ubuntu.com/ubuntu disco-security universe
deb http://archive.ubuntu.com/ubuntu disco-security multiverse
# deb-src http://security.ubuntu.com/ubuntu disco-security multiverse

# This system was installed using small removable media
# (e.g. netinst, live or single CD). The matching "deb cdrom"
# entries were disabled at the end of the installation process.
# For information about how to configure apt package sources,
# see the sources.list(5) manual.
# deb https://dl.winehq.org/wine-builds/ubuntu/ disco main
# deb-src https://dl.winehq.org/wine-builds/ubuntu/ disco main
deb http://us.archive.ubuntu.com/ubuntu/ artful-updates main
# deb-src http://us.archive.ubuntu.com/ubuntu/ artful-updates main
# deb-src https://dl.winehq.org/wine-builds/ubuntu/ disco main
# deb-src https://dl.winehq.org/wine-builds/ubuntu/ disco main
# deb-src http://us.archive.ubuntu.com/ubuntu/ artful-updates main
# deb-src http://us.archive.ubuntu.com/ubuntu/ artful-updates main
# deb-src http://us.archive.ubuntu.com/ubuntu/ artful-updates main

ОБНОВЛЕНИЕ №2: После выполнения команды, предоставленной Джимом

leslie@leslie-Lenovo-YOGA-720-13IKB:~$ sudo sed -i '60s/.*/# &/' /etc/apt/sources.list
[sudo] password for leslie: 
leslie@leslie-Lenovo-YOGA-720-13IKB:~$ sudo apt update
Err:1 http://your.repo.domain/repository disco InRelease
  Could not resolve 'your.repo.domain'
Ign:2 http://dl.google.com/linux/chrome/deb stable InRelease                   
Hit:3 http://dl.google.com/linux/chrome/deb stable Release                     
Hit:5 http://archive.ubuntu.com/ubuntu disco InRelease
Get:6 http://archive.ubuntu.com/ubuntu disco-updates InRelease [97.5 kB]
Get:7 http://archive.ubuntu.com/ubuntu disco-backports InRelease [88.8 kB]
Get:8 http://archive.ubuntu.com/ubuntu disco-security InRelease [97.5 kB]
Get:9 http://archive.ubuntu.com/ubuntu disco-updates/main amd64 DEP-11 Metadata [72.1 kB]
Get:10 http://archive.ubuntu.com/ubuntu disco-updates/universe amd64 DEP-11 Metadata [8,740 B]
Get:11 http://archive.ubuntu.com/ubuntu disco-updates/universe DEP-11 64x64 Icons [8,269 B]
Get:12 http://archive.ubuntu.com/ubuntu disco-backports/universe amd64 DEP-11 Metadata [7,164 B]
Get:13 http://archive.ubuntu.com/ubuntu disco-security/main amd64 DEP-11 Metadata [17.8 kB]
Get:14 http://archive.ubuntu.com/ubuntu disco-security/universe amd64 DEP-11 Metadata [1,480 B]
Fetched 399 kB in 2s (232 kB/s)                
Reading package lists... Done
Building dependency tree       
Reading state information... Done
All packages are up to date.
W: Failed to fetch http://your.repo.domain/repository/dists/disco/InRelease  Could not resolve 'your.repo.domain'
W: Some index files failed to download. They have been ignored, or old ones used instead.