I didn't do it :c
Was recently issued a warning for going afk in a game, but my computer crashed as soon as I'd loaded in. The whole windows 10 version of the bluescreen of death. feelsbadman 
Was recently issued a warning for going afk in a game, but my computer crashed as soon as I'd loaded in. The whole windows 10 version of the bluescreen of death. feelsbadman 
If it was just this warning you don't need to worry too much. The LeaverBuster system is set up so that if players have occasional disconnects, but do not make a habit of leaving games or actually going AFK, they will not be punished for it. I got this same one right after the new client launched, because it crashed me twice during the first week. As long as you don't leave games, you won't be escalated up the Low Priority Queue punishment ladder, and after a while of playing with no leaves/afks, your account will be back in good standing.