This plugins name is called freeze! Freeze is a 1.16 spigot plugin that you can use to freeze players on your server! To freeze a player just type /freeze <username> and they will not be able to move. Then type /freeze remove to unfreeze everyone or type /unfreeze <username> to unfreeze only one person! You can use this plugin to freeze a game, almost to pause time!

If you have any questions let me know
discord: https://discord.gg/wKsxm3gJTK​