i'm currently following a youtube tutorial to help me make my first sticker for csgo, but when i go to the model viewer to try and replace the vmt, it doesn't show up in my files.

tutorial i'm following: https://www.youtube.com/watch?v=qDuJlNCbG4I&list=PLzsdBCbed-wQQTDaqkfRX_mrTaMvIUUpk&index=2

current error: https://imgur.com/a/vKjU3nS