This problem is of this site as I am an active player of a server and when I am online it shows my name in the server List but when I close and I search my Nick on all players stats I couldn't see my Nick..
Hope , the problem will be resolved at earliest..

Your gameplay score doesn't seem to be picked up yet to be shown in the top 10s. It's probably zero due to scaning delays on GameTracker's end. Also I would not advice you to take GameTracker stats seriously due to it's limitations, you better suggest the server owners to maintain their own realtime statistics.