Disconnected: Exception: NullReferenceException: Object reference not set to an instance of an objec

[Bearen]

What error is this? I havent seen it before, got it earlier today after opening an airdrop, standing alone in a grassfield, which disconnected me as well.

After a reconnection everything is back to normal, but just dont know what it is or what caused it.

[IMG]http://data.bearen.net/rust/errors/rust-error.jpg[/IMG]