No texture

Hi, can you please tell me what could be the problem?

Tryon The Swizzle feature for textures in Unity was introduced in Unity 2023.1.
Game on 2021. Change unity version

There is too little info to understand what the problem is. Show screenshots of Unity, material, texture, etc.

I followed this video

Can u send me unity package? Right click, export package. Choose folder with mod.
U can send in my discord .ukrainian

Thank you so much! That helped