Thank you Yeez_B you have pointed me in the right direction. Once I had the communication to the sensor sorted out, everything worked perfectly again.

Thank you Yeez_B for your valuable feedback. I will try it and give feedback here.

Thanks for the reply. Yes I did switch off and on many times but no luck.

The fact that the measuring LED does not light up make me think that I might have a power supply issue. Will try to locate and measure the 3.3V regulator.