install updates error - PPA (stacer)

[Laszlo Csuti]

Hello,
Would you help me please, i get the permanent message:

Install Updates Error log
===========================
Install Updates could not fetch the package cache information lists.
Go to https://www.linuxliteos.com/forums/ and paste the log below into the Software - Support - Updates section for assistance.

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

Találat:1 http://us.archive.ubuntu.com/ubuntu jammy InRelease
Találat:2 http://us.archive.ubuntu.com/ubuntu jammy-updates InRelease
Találat:3 http://us.archive.ubuntu.com/ubuntu jammy-backports InRelease
Találat:4 http://security.ubuntu.com/ubuntu jammy-security InRelease
Találat:5 https://dl.google.com/linux/chrome/deb stable InRelease
Mellőz:6 https://ppa.launchpadcontent.net/oguzhan...cer/ubuntu jammy InRelease
Hiba:7 https://ppa.launchpadcontent.net/oguzhan...cer/ubuntu jammy Release
  404  Not Found [IP: 2620:2d:4000:1::81 443]
Találat:8 http://archive.canonical.com/ubuntu jammy InRelease
Találat:9 https://brave-browser-apt-release.s3.brave.com stable InRelease
Találat:10 http://repo.linuxliteos.com/linuxlite fluorite InRelease
Csomaglisták olvasása...
E: A(z) „https://ppa.launchpadcontent.net/oguzhaninan/stacer/ubuntu jammy Release” tárolónak nincs Release fájlja.

Thank you in advance,
Laszlo