PLEASE HELP! I was trying to make some chuck steak with Joule. I filled my pot over halfway full with water and I put my Joule in the pot to start preheating the water to my desired temperature. The app took a while to load and then it happened: a screen popped up with the message, "Critical Error", telling me that I can no longer use my circulator. I do not understand why this had happened. I was, and always am, very sure to see that I follow all the safety and usage rules and guidelines fastidiously as I have always been so fearful of this to happen.