BanGUI is a plugin for a spigot minecraft server running spigot 1.17. It allows you to moderate your minecraft server with ease with features such as BanGUI, Player Reporting, Lockdown, Staff Chat & Freeze Player. For more info on individual features please look at the documentation.
Lots of features are still yet to come and any feature suggestions are more than welcome.
https://www.spigotmc.org/resources/bangui.104948/ - Plugin on the spigot website