Power Steering(PS) issue in my car(Nissan Micra Active, Model:2013) - Error code C1608


My car Power Steering was working fine when I parked it last time, but after 4 days when I start it again, I'm getting power steering issue like steering became very hard and getting PS symbol in dash. below is the error code for the issue.

Error code in scanning is : C1608 NISSAN - Electric Power Steering Control Unit.
Name : Nissan Micra Active XL
Model Year : 2013

Could you please help me...

Thank you.