Update failure

[stavi]

Help please guys!

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 ===========

Ign:1 http://ppa.launchpad.net/landronimirc/clamtk/ubuntu bionic InRelease
Hit:2 http://archive.canonical.com/ubuntu bionic InRelease
Hit:3 http://ppa.launchpad.net/otto-kesselgulasch/gimp/ubuntu bionic InRelease
Hit:4 http://us.archive.ubuntu.com/ubuntu bionic InRelease
Hit:5 http://ppa.launchpad.net/teejee2008/ppa/ubuntu bionic InRelease
Get:6 http://us.archive.ubuntu.com/ubuntu bionic-security InRelease [88.7 kB]
Hit:7 https://brave-browser-apt-release.s3.brave.com stable InRelease
Err:8 http://ppa.launchpad.net/landronimirc/clamtk/ubuntu bionic Release
  404  Not Found [IP: 91.189.95.83 80]
Hit:9 http://repo.linuxliteos.com/linuxlite diamond InRelease
Get:10 http://us.archive.ubuntu.com/ubuntu bionic-updates InRelease [88.7 kB]
Get:11 http://us.archive.ubuntu.com/ubuntu bionic-backports InRelease [74.6 kB]
Get:12 http://us.archive.ubuntu.com/ubuntu bionic-updates/main amd64 Packages [1,000 kB]
Get:13 http://us.archive.ubuntu.com/ubuntu bionic-updates/main i386 Packages [709 kB]
Get:14 http://us.archive.ubuntu.com/ubuntu bionic-updates/universe amd64 Packages [1,090 kB]
Get:15 http://us.archive.ubuntu.com/ubuntu bionic-updates/universe i386 Packages [1,023 kB]
Reading package lists...
E: The repository 'http://ppa.launchpad.net/landronimirc/clamtk/ubuntu bionic Release' does not have a Release file.