Yosemite Safari 10 newbie can't open 3D warehouse

G’day all
Are there specific settings in safari to allow 3D warehouse to open, I love the program but, only have 15 days trial left and am getting frustrated at my inability to open it so. Is there anybody out there, can anybody hear me ( yep I like pink Floyd) lol

When the trail period expires the program should revert to the free make version;
Do you get any error messages when the 3D warehouse does not open??
Try opening 3d ware house via the browser vs within SU??