Hope or fix stefan? I told you your network scripting was worse than mine, resetting the server wont help, you need to update the code for the connection links, its probably not good enough to cope with the server>serverlist connection with all these new playerworlds you keep accepting.
I hope that helps, it probably does, it did with my online game and I use the same network engine as you do.
My script was broken due to an overload, the server could not cope with all the connections at once, I was stupid enough to use a simple IP connection instead of linking it properly with access code. That taught me not to take shortcuts. xD