A bug in yesterday's BattlEye update causes Linux servers to no longer be able to load the BE Server.
So if you run a Linux server, your BE Server updated yesterday and now fails to load, you are urged to manually update it from
http://www.battleye.com/soldat/BEServer.so now. This problem can only be fixed by updating manually because obviously BE can't perform an auto-update anymore when it doesn't run.
Otherwise your server will no longer be protected from cheaters in any way, even though it will still run as usual with the server browser marking it as BE-enabled.