Posting the error log here as I'm unable to install the updates.

[yashdesai01]

===========================
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 the Software - Support - Updates section for assistance.

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

Hit:1 https://dl.winehq.org/wine-builds/debian bookworm InRelease
Get:2 https://dl.winehq.org/wine-builds/ubuntu jammy InRelease [8,041 B]
Hit:3 http://archive.canonical.com/ubuntu jammy InRelease
Get:4 http://security.ubuntu.com/ubuntu jammy-security InRelease [110 kB]
Hit:5 http://repo.linuxliteos.com/linuxlite fluorite InRelease
Err:2 https://dl.winehq.org/wine-builds/ubuntu jammy InRelease
  The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 76F1A20FF987672F
Hit:6 http://us.archive.ubuntu.com/ubuntu jammy InRelease
Get:7 http://us.archive.ubuntu.com/ubuntu jammy-updates InRelease [119 kB]
Get:8 http://us.archive.ubuntu.com/ubuntu jammy-backports InRelease [109 kB]
Reading package lists...
W: GPG error: https://dl.winehq.org/wine-builds/ubuntu jammy 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 jammy InRelease' is not signed.

[Valtam]

Looks like you've added the Wine repository at some stage, how did you do this?

[yashdesai01]

Looks like you've added the Wine repository at some stage, how did you do this?

I just downloaded it from the internet. Nothing new. I wanted to install MT5 Terminal and, it won't install unless I downloaded Wine Repository so, I did it and, it still didn't install. By the way, do you have a solution to my problem?

[stevef]

In order to offer a solution, it is usually necessary to understand how the system got into the state it is - hence the request for the method used.

'just downloaded it from the Internet' obviously didn't work for you, but it is very difficult/impossible to help using the information provided.

Re-check that the installation instructions you used are from a reputable source and are valid and recent. If they are, then double check that you correctly executed them.