I figured out the problem but the things that I am wondering about are Cylinder Lights. Should I disable them because if I don't nothing happens in the scene and it is a constant cylinder that disables me from seeing the magic circle. Also does the magic circles get randomized in this demo scene?
The column of light is supposed to be transparent, but if it's opaque and purple it hints at a material issue. You'll have to generate the circle in the tool and import them into your unity project. Then set the image in the material to the circle you imported.