Updates?

[T1]

===========================
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 a new or existing thread for assistance.

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

Hit:1 http://repo.linuxliteos.com/linuxlite emerald InRelease
Get:2 https://brave-browser-apt-release.s3.brave.com focal InRelease [2,820 B]
Hit:3 https://brave-browser-apt-release.s3.brave.com stable InRelease
Hit:4 http://archive.canonical.com/ubuntu focal InRelease
Get:5 http://mirrors.ubuntu.com/mirrors.txt Mirrorlist [4,063 B]
Err:2 https://brave-browser-apt-release.s3.brave.com focal InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4FE13824E3FFC656
Hit:6 http://mirror.clarkson.edu/ubuntu focal InRelease
Get:9 http://muug.ca/mirror/ubuntu focal-security InRelease [114 kB]
Hit:7 http://mirror.cogentco.com/pub/linux/ubuntu focal-updates InRelease
Get:8 http://mirror.siena.edu/ubuntu focal-backports InRelease [101 kB]
Reading package lists...
W: GPG error: https://brave-browser-apt-release.s3.brave.com focal InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 4FE13824E3FFC656
E: The repository 'https://brave-browser-apt-release.s3.brave.com focal InRelease' is not signed.