Maybe it's just me, but I cannot find any information on how to join the server. There's a server address, that's good, but do I need a modpack? If so, where do I get it? Don't know where to begin.
You can join our server using any vanilla Minecraft Java client as long as the version is between 1.10 and 1.17. All you have to do is enable server resource packs or, if you want to download the resource pack manually, run /pack in-game and follow the instructions there.