Ubuntu repos broken

[bushido]

I got

Get:7 https://virtualbox.org:443/virtualbox/debian jammy InRelease [16,8 kB]
Err:7 https://virtualbox.org:443/virtualbox/debian jammy InRelease
  Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
Reading package lists... Done        
E: Failed to fetch http://virtualbox.org/virtualbox/debian/dists/jammy/InRelease  Clearsigned file isn't valid, got 'NOSPLIT' (does the network require authentication?)
E: The repository 'http://virtualbox.org/virtualbox/debian jammy 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.
}}} when I executed 
{{{sudo apt-get update}}} in Terminal.
I am running Ubuntu 22.04 LTS 64-bit.