Distant Horizons not working on Apex Hosting Paper 1.21.4 server.

Hello, I am trying to get DH working for my Paper server. I put the DHS-0.8.1_for_MC-1.21.4.jar in the plugins folder, reset the server and I have the config file accessible, but when I log into the server, there's no distant chunk generation. The mods works for me when I use the 2.3.0 client side version, but I don't know how to get it working on the server. Any help would be appreciated!