In the last few days I found the server often broken. I could join it, but there were no menus, no players, no way to join a team or do something beside open the console. Restarting the server temporary fixed this. I know of at least 4 or 5 such cases and the server was always on Stoneshill. So I removed this map from the rotation and restarted the server. Hopefully this will mitigate the problem.
I know that MonkeyFiend was "rebuilding" the server before. I don't know what this involves or how to do it, but it might be time to do it again. So, Fiendo, if you have the time to take a look it would be great.
Stay safe! See you all in the battlefield.