Infinite looping between http and https for CoursePress Pro

Hi, at the second screen of the purchase navigation of CoursePress Pro I am getting an infinite looping for http://cursoarcgis.com.br/

The looping happens at http://cursoarcgis.com.br/store/schopping-cart/shipping/

Could you please, take a look at it for me? The access is already granted. Thank you!