THR320D stops recognizing DS18B20

I installed a THR320D with Waterproof Temperature Sensor DS18B20 and with an RL560 extension, it worked fine for a few hours, then apparently the THR320D stops recognizing the DS18B20, and the temperature is no longer displayed on the screen and in the ewelink app. How can I resolve this?

Hi there, I think you can consult the SONOFF after-sales team for further assistance.