I recently in the last few minutes placed a redstone controller but it seemed to be working fine for several minutes, before the crashes started. It was running as a ten second timer, I reset it to do nothing just before the last crash, not sure if that took effect before the server went down or not. The area I am working in is not chunk loaded. I believe there were three of us online at the time Myself DragonsunX and I think CollyDee was still on.