Update error

[Newie]

Hello, I am new to linux, when I want to update I get an error

===========================
Install Updates Error log
===========================
Install Updates could not fetch the package cache information lists.
Go to https://www.freecinema2022.gq/forums/ and paste the log below into a new or existing thread for assistance.

============ Log ===========

Obj:1 http://repo.steampowered.com/steam precise InRelease
Obj:2 http://dl.google.com/linux/chrome/deb stable InRelease
Obj:3 https://dl.winehq.org/wine-builds/ubuntu focal InRelease
Obj:4 https://dl.winehq.org/wine-builds/ubuntu bionic InRelease
Obj:5 https://dl.winehq.org/wine-builds/ubuntu xenial InRelease
Obj:6 https://dl.winehq.org/wine-builds/ubuntu artful InRelease
Obj:7 http://repo.linuxliteos.com/linuxlite emerald InRelease
Obj:8 http://archive.canonical.com/ubuntu focal InRelease
Obj:9 http://archive.ubuntu.com/ubuntu focal InRelease
Obj:10 http://ppa.launchpad.net/gezakovacs/ppa/ubuntu focal InRelease
Obj:11 http://packages.microsoft.com/repos/code stable InRelease
Des:13 http://archive.ubuntu.com/ubuntu focal-updates InRelease [114 kB]
Obj:14 http://ppa.launchpad.net/nextcloud-devs/client/ubuntu focal InRelease
Obj:15 https://packages.microsoft.com/repos/vscode stable InRelease
Obj:16 https://packages.microsoft.com/repos/ms-teams stable InRelease
Ign:17 http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu focal InRelease
Des:18 http://archive.ubuntu.com/ubuntu focal-backports InRelease [101 kB]
Err:12 https://dl.bintray.com/etcher/debian stable InRelease
  403  Forbidden [IP: 52.38.105.61 443]
Ign:19 http://ppa.launchpad.net/webupd8team/nemo/ubuntu focal InRelease
Des:20 http://archive.ubuntu.com/ubuntu focal-security InRelease [114 kB]
Err:21 http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu focal Release
  404  Not Found [IP: 91.189.95.85 80]
Err:22 http://ppa.launchpad.net/webupd8team/nemo/ubuntu focal Release
  404  Not Found [IP: 91.189.95.85 80]
Leyendo lista de paquetes...
E: Fallo al obtener https://deb.etcher.io/dists/stable/InRelease  403  Forbidden [IP: 52.38.105.61 443]
E: El repositorio «https://deb.etcher.io stable InRelease» no está firmado.
E: El repositorio «http://ppa.launchpad.net/ubuntu-wine/ppa/ubuntu focal Release» no tiene un fichero de Publicación.
E: El repositorio «http://ppa.launchpad.net/webupd8team/nemo/ubuntu focal Release» no tiene un fichero de Publicación.