About Gavril T series addon mod

I downloaded this mod https://beamng.com/resources/gavril-t-series-addon.178/ last week. All trucks in this mod work, but the wood of this truck has a little problem and instead of its brown color, it says No Texture. Please tell me how to fix this problem.

Game version: 0.21

 

its an older mod, so you may have to wait for the next update