Python API request restricted to only 2019 data?

Help
#1

When I try to access the API using python, I get the following error message when I try to access any data before 2019:

‘Error: \ndate_from must be 2019-01-01 or later’

But it seems the actual data pre-2019 is available manually clicking around on the site. Am i missing something?

Here is the url that I used:

https://www.renewables.ninja/api/data/pv?lat=39.59&lon=-117.4&date_from=2018-01-01&date_to=2018-12-31&dataset=merra2&capacity=170&system_loss=0.1&tracking=2&tilt=35&azim=180&local_time=True&format=csv