UR22 MKii hum sound through mic

Im using this UR22 recording pack from 2017/06 till 2018/04, it performed well throughout the months.
I used it to create midi arrangement with ST-H01 earphone connected.
but Recently, there is a static hum everytime when my mic (steinberg ST-M01) is connected and phantom power +48v switched on.

I’m so frustrated with the humming sound, can anyone help me with some solutions?