Can't add a "Object Radius" or a "WorldAlignedTexture" node to this material


I’d like to add a code in my material which when I’m scaling the mesh, the material doesn’t scale. There are many topics and tutos on this subject but I don’t know why (certainly because I’m a noob :rolleyes:), I can’t do this to this specific material. I tried many ways but it still doesn’t work. I know I can do this with a “WorldAlignedTexture” node or a “Object Radius”. Preferably, I’d like to use the Object Radius but WorldAlignedTexture would be prerry good too. Someone can help me please ?