Could be a bug with the AFK kick feature I suppose. I guess you should relog before playing if you know you've been afk too long. Although really you shouldn't be going AFK for such a long time, that is why SDE tried to add the kick feature in the first place.

Yes, this is the "kick feature" being broken. I have the same problem since it was introduced (nearly a year). It never kicks me, just makes my game crash after the next battle.

At first I had no idea why this happens and was extremely annoyed by the frequent crashes every day. Solution: never afk, always shut down the game if you're going away.

We call it "The Angry Dolphin" bug.

Relog doesnt help. Requires restart of the game. A very unfortunate thing. This working at all with someone? It is necessary to remove this "kicking" feature, it pure bug.