Because for some reason no "New topic" button there.
I can't start build my first server according with your "official" guides from the main page of l2jserver.com/. Some bug of your site, when comes to step
Get the server Core, DataPack and Geodata (optional) for the version you want.
I can't download it, those two buttons on site

simply throw my user view on the top of your site, and no downloading begins. I have window10x64, tried to download with opera and microsoft edge. Same result, same bug.
P.S. "High five geodata" i can download, there is no bug.