Code:
Get:1 http://http.kali.org/kali kali-rolling InRelease [250 B]
Err:1 http://http.kali.org/kali kali-rolling InRelease
  Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
Reading package lists... Done    
E: Failed to fetch http://http.kali.org/kali/dists/kali-rolling/InRelease  Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
E: The repository 'http://http.kali.org/kali kali-rolling InRelease' is no longer 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.
I am again and again getting this error when I am running 'sudo apt-get update --fix-missing'
I am using Kali Linux Gnome, version 2020.3
I haven't setup any proxy or vpn or tampared with packages or repositories.

Please help!