update problems - PPA

[stephan84]

Hello everyone,

I'm new to linux.
I changed ma operating system to linux about one month ago.
Today I wanted to fetch the newest updates.
But all I got were the following error messages.
Would be happy if someone could help me.

thx

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

OK:1 http://packages.microsoft.com/repos/code stable InRelease
OK:2 https://dl.google.com/linux/chrome/deb stable InRelease
Ign:3 https://ppa.launchpadcontent.net/oguzhan...cer/ubuntu jammy InRelease
OK:4 http://us.archive.ubuntu.com/ubuntu jammy InRelease
OK:5 http://archive.canonical.com/ubuntu jammy InRelease
Holen:6 http://security.ubuntu.com/ubuntu jammy-security InRelease [110 kB]
Fehl:7 https://ppa.launchpadcontent.net/oguzhan...cer/ubuntu jammy Release
  404  Not Found [IP: 2620:2d:4000:1::3e 443]
Holen:8 http://us.archive.ubuntu.com/ubuntu jammy-updates InRelease [114 kB]
OK:9 http://repo.linuxliteos.com/linuxlite fluorite InRelease
Holen:10 http://us.archive.ubuntu.com/ubuntu jammy-backports InRelease [99,8 kB]
Paketlisten werden gelesen…
E: Das Depot »https://ppa.launchpadcontent.net/oguzhaninan/stacer/ubuntu jammy Release« enthält keine Release-Datei.