I have the same issue with one of my Powercolor RX 570. I ussually means either too much overclock or too much undervolt that is causing that card to crash. Your clocks are not too high, so try setting the core voltage to the default and the power limit to -10%. It could also be a bad riser.
Alright i will try with your setting there
Btw one question, since i have the smart plug, i will always turn off and turn on when the GPU hang
I am currently using Claymore miner and when i start up, a BAT file will be launch.
Is there anyway that i can disabled GPU4 when i run the miner automatically?