Hi Camlan, as always I need to know what versuion you are using and where you got it from so I can go test it myself and see what the issue is , In some versions of shareguard you have to enter a PeerCache address like this one (caches.winmxworld.net) in the options/settings page but not all versions have that feature so version info is important .
Let me know the info and i'll get on the case for you