Why are textures not drawn on 3d models in libGdx?

Question

libgdx

Hello, I'm trying to display a cube with textures in an android application using the libGdx library. At first, a white cube was simply drawn, then a DirectionLight light was added and now the color of the cube is drawn (which is by default during modeling), and I can't figure out how to display the texture, because the tutorials just need to add an object to the scene with light and everything will be ok....
Here is my code:

// Создаю assetMananger =>
 assetMananger = new AssetManager();
 assetMananger.load("models/box/box.obj", Model.class);
// загружаю куб в методе create =>
         Model model = game.assetMananger.get("models/box/box.obj", Model.class);
        modelInstance = new ModelInstance(model);
        modelInstance.transform.setTranslation(0f, 0f, 0f);
// Создаю свет =>
 environment = new Environment();
 environment.set(new ColorAttribute(ColorAttribute.AmbientLight, 0.4f, 0.4f, 0.4f, 1f));
 environment.add(new DirectionalLight().set(com.badlogic.gdx.graphics.Color.BLUE, 1,650,1));
// Создаю камеру =>
 camera = new PerspectiveCamera(45,Gdx.graphics.getWidth(), Gdx.graphics.getHeight());
 camera.position.set(0,625,0);
 camera.lookAt(0f,0f,0f);
 camera.far = 6000;
 camera.near = 0.01f;
 camera.update();
// В методе render рендерю модели =>
 Gdx.gl20.glClear(GL20.GL_COLOR_BUFFER_BIT | GL20.GL_DEPTH_BUFFER_BIT);
 camera.update();
 modelBatch.begin(camera);
 modelBatch.render(modelInstance, environment);
 modelBatch.end();

The model itself consists of a .tga texture, an .obj object itself, and an .mta file