Error for downloading ERA5 reanalysis data

Hello I am Jessey, I get this " ERROR:Missing/incomplete configuration file: C:\Users\sunbeam.snap\auxdata\sen-et-conda-win64\sen-et-snap-scripts.........cdsapirc" error when trying to download ECMWF ERA5 reanalysis data from snap. Please help me resolve it.

How did you manage to reach this stage? I am having problems in downloading/using CDS API part.
I am in step 3 in the prerequisites but still its not working

It says I should put this code

So when i add it to my command prompt it gives this. I am also trying to add where i saved my python but also its not working. I guess i am writing a wrong code or so. Can you help as im not familiar with python.
Thanks in advance