DumbCSV with no Output

Me again,
after @BrunoSautron helped me with my main.py error i have another issue
The CSV Output doesnt have any actual data is that normal? I mean the only information i get is:
capture_ts,par_umole_m2s,vwc_percent,air_temperature_celsius
should i get the actual values/data?

Thanky in Advance

Sorry I am a noob!
Ok i got it working, just had to read the instructions again (RTFM???) :joy:
Greets