Materials and Textures for a model were imported incorrectly

Hi, so I've been wanting to import a model into a Online Game called VRChat, and I took the right steps, but unfortunately when the textures were loaded in, the materials and textures were imported incorrectly, as you can see, I've been trying to import Louie from The Simpsons (His Hit & Run Model) into Unity, but unfortunately, the eye textures were imported incorrectly, here's an image