[![enter image description here](https://i.stack.imgur.com/2p5Wz.png)](https://i.stack.imgur.com/2p5Wz.png)

when i run sudo apt update

It shows :-
E: Failed to fetch <http://packages.microsoft.com/repos/code/dists/stable/InRelease> Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
E: The repository 'http://packages.microsoft.com/repos/code stable InRelease' is not signed.
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.