3d object light

Hello,

I have imported a 3D object (Gltf) i created, with its texture. Light was not baked, only the diffuse colour. Objectvis imported correctly but in the Comp it is affected by a light source that I can't find. There are no layer lights on my comp. On the object itself I can only access the transform properties. I need the object with flat texture only, no shadows. What should I do?

Thanks