I'm not sure if these crashes I'm experiencing are caused by player interference or not, but when it happens a timer appears and a countdown begins. This happened numerous times over the past couple days.
Just to give an idea of the volume that this is happening. It happened just before I decided to write this feedback, and it happened again while I was writing this feedback.
EDIT: after the last "message countdown crash" (as I will be calling it), I decided to add who was online in my server to a message group. What I discovered was that people had varying experiences with this crash. Some did not experience any crash, lag, and we're completely unaware of any server issues. However, I myself and a few others had experienced the server crash and one person, unfortunately, lost his life to zombies during the crash.