Not sure how to interpret this pressure advance calibration print

I printed the pressure advance calibration print and this is how it turned out. I’m not sure why its split into segments like this. How do I interpret this?

The sides should be straight. You have some really bad z banding that you’ll need to fix. That’s a hardware issue that you’ll need to research. It’s often a result of a bent lead screw or an alignment issue in your z axis.

Yep you are right. Need to fix that first.