Download and put the dependencies in your plugins folder.
Restart your server.
Upload TablistManager.sk to plugins/skript/scripts folder.
Restart your server again.
Version Information:
TablistManager UPDATE 2.X has been tested on Skript version 2.8 and Minecraft version 1.20.4 We recommend that you run 1.19.X+ on your Minecraft server, as errors may occur on older versions.