Hi Kingraj,
1. There is currently no active development for SSE, there has not been any for the last few years.
2. Vstep removed 'official' multiplayer servers on 15th November 2015. I ran 'user' multiplayer servers until last December when the number of players dropped to almost nothing.
3. I guess that because there is no development team, there is no one to keep the website up to date.
SSE has passed its prime and is now slipping into obscurity, a sad situation to be sure. We are lucky that there are a few die-hard dedicated administrators that keep this forum running.