Chloropheth map project

Hi, I just started the chloropheth map challenge and have been following a guide blog on how to plot it, and so far I’ve gotten to this level but when I run it, the map doesn’t show anything. Please can anyone help me check my code out and point out what is missing, my codepen is
ps: I set the fill style to all green for debugging purpose but to no avail. I’ve also tried console.log method but it doesn’t output anything

No need, already figured it out