My Vega 56&64 rig keeps shutting off after a week of running



I am mining xmr and for some reason my rig keeps on turning off after a week. I am supposed to be getting around 7-8k h/s but instead i am getting around 5800-6400 :frowning: and the rig keeps turning off. I am using the cast-xmr miner from gandolf3000. Can someone help? I can share my settings as well.