Add Modifier - Array and Curve

I am trying to add modifiers to a plane to get it to repeat around a curve.
But the plane follows a different curve - see attached.
Do I have to “Flip Normals” or similar on the curve?

Curve is black, modified plane is pink.


Solved - I accidentally moved the curve object center away from 0,0,0 position.
I moved it back and now plane follows path.