Install Updates Error Log - PPA (stacer)

[pmfb]

Hi.
I need some help.

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

Atg:1 http://security.ubuntu.com/ubuntu noble-security InRelease
Atg:3 https://updates.signal.org/desktop/apt xenial InRelease
Atg:4 http://us.archive.ubuntu.com/ubuntu noble InRelease
Atg:5 https://ppa.launchpadcontent.net/mozillateam/ppa/ubuntu noble InRelease
Atg:6 https://packages.microsoft.com/repos/code stable InRelease
Atg:7 https://ppa.launchpadcontent.net/mozilla...ext/ubuntu noble InRelease
Atg:8 https://dl.google.com/linux/chrome/deb stable InRelease
Atg:9 http://us.archive.ubuntu.com/ubuntu noble-updates InRelease
Ign:10 https://ppa.launchpadcontent.net/oguzhan...cer/ubuntu noble InRelease
Atg:11 https://packages.mozilla.org/apt mozilla InRelease
Atg:12 https://ppa.launchpadcontent.net/qbittor...ble/ubuntu noble InRelease
Atg:2 https://repo.linuxliteos.com/linuxlite galena InRelease
Atg:13 http://us.archive.ubuntu.com/ubuntu noble-backports InRelease
Err:14 https://ppa.launchpadcontent.net/oguzhan...cer/ubuntu noble Release
  404  Not Found [IP: 185.125.190.80 443]
Ign:15 http://linux.dropbox.com/ubuntu noble InRelease
Atg:16 http://linux.dropbox.com/ubuntu noble Release
A ler as listas de pacotes...
W: https://updates.signal.org/desktop/apt/d.../InRelease: A chave é armazenada no chaveiro legado trust.gpg (/etc/apt/trusted.gpg), veja a seção DEPRECATION em apt-key(8) para detalhes.
E: The repository 'https://ppa.launchpadcontent.net/oguzhaninan/stacer/ubuntu noble Release' does not have a Release file.
W: https://ppa.launchpadcontent.net/mozilla.../InRelease: Signature by key 0AB215679C571D1C8325275B9BDB3D89CE49EC21 uses weak algorithm (rsa1024)
W: https://ppa.launchpadcontent.net/mozilla.../InRelease: Signature by key 0AB215679C571D1C8325275B9BDB3D89CE49EC21 uses weak algorithm (rsa1024)

Thanks
Pedro