How do I fix this issue with the color and materials when I import my 3D models to Godot

I uploaded a playable build of my fan game Five Nights at Sheldon's Fun Center, feel free to test it

https://gamejolt.com/games/Sheldonthelowpolyturtle/755819

Testing some lighting effects

#FNAF #Fangame

Happy 50,000 Followers!!!

Making of my fan game Five Nights at Sheldon's Fun Center LOG 1 (skip to 0:18)

This week's Fan Art Friday celebrates Five Nights at Freddy's! Accept the quest in your quest log to get started.

Five Nights at Sheldon's fun center clock #fnaf

A New animatronic

William Afton and his stupid purple car he cared about more than his KIDS

Making of my fan game Five Nights at Sheldon's Fun Center LOG 1 (skip to 0:18)