Ubuntu Server LTS 20.04 Can't update due to repository no longer having a Release file

I can’t run apt update due to the repositories not having Release files anymore, can anyone help fix this please?

root@VPS-1:~# sudo apt update
Ign:1 http://mirrors.digitalocean.com/ubuntu groovy InRelease
Hit:2 https://deb.nodesource.com/node_14.x groovy InRelease
Ign:3 http://security.ubuntu.com/ubuntu groovy-security InRelease
Ign:4 http://mirrors.digitalocean.com/ubuntu groovy-updates InRelease
Err:5 http://security.ubuntu.com/ubuntu groovy-security Release
  404  Not Found [IP: 91.189.88.152 80]
Ign:6 http://mirrors.digitalocean.com/ubuntu groovy-backports InRelease
Err:7 http://mirrors.digitalocean.com/ubuntu groovy Release
  404  Not Found [IP: 104.21.29.13 80]
Err:8 http://mirrors.digitalocean.com/ubuntu groovy-updates Release
  404  Not Found [IP: 104.21.29.13 80]
Err:9 http://mirrors.digitalocean.com/ubuntu groovy-backports Release
  404  Not Found [IP: 104.21.29.13 80]
Reading package lists... Done
E: The repository 'http://security.ubuntu.com/ubuntu groovy-security Release' no longer has 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.
E: The repository 'http://mirrors.digitalocean.com/ubuntu groovy Release' no longer has 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.
E: The repository 'http://mirrors.digitalocean.com/ubuntu groovy-updates Release' no longer has 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.
E: The repository 'http://mirrors.digitalocean.com/ubuntu groovy-backports Release' no longer has 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.