Hello, Oddonelynx, as of the newest update, BitTorrent is no longer a necessity when it comes to using FH Preset Sync. If you are using Windows OS, all you need is to download and run the following file which is located in the official Preset Sync thread:
https://feral-heart.com/DL/PresetSyncSetup.exe After installing the add-on, run Feralheart and you should automatically be greeted by a background process that downloads all of the synced preset files.
I also tried clicking the link to BitTorrent and experienced trouble, which leads me to suspect the link is simply outdated. Regardless, you should not have to download anything else besides the link above.