What happened when you say “crashed”? Was Plex still in the system tray but unresponsive? Or did the program totally shut down? There was/is an ongoing bug called a deadlock that the devs are trying to identify. Please see this thread for further info:
A deadlock is when Plex appears to be running in the system tray, but is unreachable via any clients or the web interface. If you are experiencing this issue, please read the linked thread and try to provide diagnostics. The devs need all the data that they can get.
