I need uma pbr to run character creator, how do I get it?

Hi, Steven here, I’m new to Unity, and I have some big hopes for this!
My question is, I’m trying to install DK UMA to Unity, and every time I install it, it seems to not install!
I watched several YouTube videos, and they all say to first install PBR! I have tried to get this PBR but Unity site says this software has been banned!! I just paid for DK UMA and DK UMA Premium. Please help!!

You can still get the PBR textures here