A couple of material errors

https://i.redd.it/nqht6pjpecb81.png - How do I find the materials it’s referring to?

https://preview.redd.it/sl3tew1hhcb81.png?width=960&crop=smart&auto=webp&s=fb43bc6bc16b3b525d6e883f95580b65ff8b8d6a - How do I make an overlay to a UI HUD Properly?