Install Updates Error - linux Lite 5.0

[Alex Borja]

Good day everyone!

I am new in using Linux System. I was successful in installing the Linux Lite 5.0. But when I tried installing the system, the following error occurs:

Code:

===========================
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 ===========

Get:1 https://dl.winehq.org/wine-builds/ubuntu focal InRelease [6,257 B]
Hit:2 http://us.archive.ubuntu.com/ubuntu focal InRelease
Hit:3 http://repo.linuxliteos.com/linuxlite emerald InRelease
Err:1 https://dl.winehq.org/wine-builds/ubuntu focal InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 76F1A20FF987672F
Hit:4 http://security.ubuntu.com/ubuntu focal-security InRelease
Hit:5 http://us.archive.ubuntu.com/ubuntu focal-updates InRelease
Get:6 https://dl.winehq.org/wine-builds/ubuntu eoan InRelease [6,255 B]
Hit:7 http://archive.canonical.com/ubuntu focal InRelease
Hit:8 http://us.archive.ubuntu.com/ubuntu focal-backports InRelease
Err:6 https://dl.winehq.org/wine-builds/ubuntu eoan InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 76F1A20FF987672F
Reading package lists...
W: GPG error: https://dl.winehq.org/wine-builds/ubuntu focal InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 76F1A20FF987672F
E: The repository 'https://dl.winehq.org/wine-builds/ubuntu focal InRelease' is not signed.
W: GPG error: https://dl.winehq.org/wine-builds/ubuntu eoan InRelease: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 76F1A20FF987672F
E: The repository 'https://dl.winehq.org/wine-builds/ubuntu eoan InRelease' is not signed.

I hope you can help me on this problem and guide me on how to fix this error. Thank you very much.