Well @Oak's connection is super buggy and unreliable, every blip in SE websocket server and it dies. Dunno why, but no doubt it's the biggest downside of the bot.
(all other bots I know have reconnect mechanism, which works really well.)
Oak lost connection to the Sandbox's web socket on July 17 and tried to reconnect. But the reconnect was unsuccessful and he didn't make any further attempts. He is back now :D