The AFK system is Not very good
The way labeling someone afk to remake in a game is not a good one right now, its simply if you stand still, and dont move the mouse or click. This just makes it so that people can simply put on an auto clicker and ruin the game so that they cant remake the game. You could make it so that you would have to leave the fountain but that can still be abused.
It should be that if you dont get any experience within a 5-7min timeframe you get kicked.