Aqara wall switch not working

Hi, I’m trying to install an aqara wall switch D1 (no neutral) and I have added aonghus-mor to smartthings app. I have added and connected the wall switch to ST app but it doesn’t work when I tried to link it to samsung motion sensor to turn on the lights. I also cannot turn the lights on & off using the google home.

Can anyone tell me what could be wrong?

Million thanks in advance!