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I break my apt (package system) loolll but I solved it!

Problem:

root@user:/var/lib/apt# sudo apt-get update
Hit:1 <http://th.archive.ubuntu.com/ubuntu> focal InRelease
Hit:2 <http://th.archive.ubuntu.com/ubuntu> focal-updates InRelease                                        
Hit:3 <http://th.archive.ubuntu.com/ubuntu> focal-backports InRelease                                      
Hit:4 <http://ppa.launchpad.net/deadsnakes/ppa/ubuntu> focal InRelease                                     
Hit:5 <http://security.ubuntu.com/ubuntu> focal-security InRelease
Ign:6 <http://ppa.launchpad.net/gwibber-daily/ppa/ubuntu> focal InRelease
Hit:7 <http://ppa.launchpad.net/ubuntu-toolchain-r/test/ubuntu> focal InRelease
Err:8 <http://ppa.launchpad.net/gwibber-daily/ppa/ubuntu> focal Release
  404  Not Found [IP: 2620:2d:4000:1::81 80]
Reading package lists... Done
E: The repository '<http://ppa.launchpad.net/gwibber-daily/ppa/ubuntu> focal Release' does not have 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.

Solve:

mkdir ~/old_sources_list_d && sudo cp -r /etc/apt/sources.list.d/* ~/old_sources_list_d/
sudo rm -r /etc/apt/sources.list.d/*
sudo apt update