I get the below error after I run sudo apt update
How can I fix this?
Hit:1 http://mirror.hetzner.de/ubuntu/packages focal InRelease
Hit:2 http://mirror.hetzner.de/ubuntu/packages focal-updates InRelease
Hit:3 http://mirror.hetzner.de/ubuntu/packages focal-backports InRelease
Hit:4 http://mirror.hetzner.de/ubuntu/packages focal-security InRelease
Get:5 http://security.ubuntu.com/ubuntu focal-security InRelease [114 kB]
Hit:6 https://download.docker.com/linux/ubuntu focal InRelease
Hit:7 http://ppa.launchpad.net/ondrej/nginx-mainline/ubuntu focal InRelease
Hit:8 http://archive.ubuntu.com/ubuntu focal InRelease
Get:9 http://archive.ubuntu.com/ubuntu focal-updates InRelease [114 kB]
Hit:10 http://ppa.launchpad.net/ondrej/php/ubuntu focal InRelease
Get:11 http://archive.ubuntu.com/ubuntu focal-backports InRelease [108 kB]
Ign:12 https://packages.sury.org/nginx-mainline focal InRelease
Err:13 https://packages.sury.org/nginx-mainline focal Release
404 Not Found [IP: 138.199.37.226 443]
Reading package lists... Done
E: The repository 'https://packages.sury.org/nginx-mainline focal Release' does not have a Release file.
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.
