Crash after few mins, not always but crashed many times

Even the game is slow, the older version do not crash, I just play normally and AFK for a few min, the game client gone, I think the steam update may affect the game so I updated the steam and loaded the save and put it at the background, after around 10 min, it gone again, finally i realize that the game crashed, i do not know what is happening but i have to send the log to you to see is my computer having problem or the game crash itself.