A friend asked for this print in "Cancer Survivor Ribbon Pink". I was happy to obliege however, i ran into the same problem as another user where no slicer would accept/open it. I downladed the oject file and imported it into windows “3D Builder”. The program gave a warning and i was able to perfrom an auto repair. I exported the file as an stl and it will now open in Prusa Slicer as well as Bambu(as of this writing). My friend was delighted and I hope it helps you as well.
The author remixed this model.
Uploaded as an STL rather than OBJ for ease of use/print. This is more of a fix since the original file would not open in any slicer.