I'm doing a program to test Spine_LibGDX and I get this error:

Exception in thread "LWJGL Application" java.lang.NullPointerException: Cannot invoke "com.badlogic.gdx.utils.Array.contains(Object, boolean)" because "com.badlogic.gdx.backends.lwjgl.LwjglGraphics.extensions" is null
   at com.badlogic.gdx.backends.lwjgl.LwjglGraphics.supportsExtension(LwjglGraphics.java:622)
   at com.badlogic.gdx.graphics.GLTexture.getMaxAnisotropicFilterLevel(GLTexture.java:232)
   at com.badlogic.gdx.graphics.GLTexture.unsafeSetAnisotropicFilter(GLTexture.java:191)
   at com.badlogic.gdx.graphics.Texture.load(Texture.java:163)
   at com.badlogic.gdx.graphics.Texture.<init>(Texture.java:147)
   at com.badlogic.gdx.graphics.Texture.<init>(Texture.java:142)
   at com.badlogic.gdx.graphics.Texture.<init>(Texture.java:122)
   at com.badlogic.gdx.graphics.g2d.TextureAtlas.load(TextureAtlas.java:253)
   at com.badlogic.gdx.graphics.g2d.TextureAtlas.<init>(TextureAtlas.java:245)
   at com.badlogic.gdx.graphics.g2d.TextureAtlas.<init>(TextureAtlas.java:240)
   at com.badlogic.gdx.graphics.g2d.TextureAtlas.<init>(TextureAtlas.java:235)
   at com.badlogic.gdx.graphics.g2d.TextureAtlas.<init>(TextureAtlas.java:225)
   at com.QYun.SpineTest.create(SpineTest.java:30)

It is SpineTest code:

public class SpineTest implements ApplicationListener {

   float x = 0;
   float y = 0;
   OrthographicCamera camera;
   TwoColorPolygonBatch batch;
   SkeletonRenderer renderer;
   Skeleton Frostl_Build;
   AnimationState Frostl_BuildState;

   @Override
   public void create() {
      float w = Gdx.graphics.getWidth();
      float h = Gdx.graphics.getHeight();
      camera = new OrthographicCamera(w, h);
      batch = new TwoColorPolygonBatch();
      renderer = new SkeletonRenderer();
      renderer.setPremultipliedAlpha(true);

  TextureAtlas atlas = new TextureAtlas(Gdx.files.internal("Frostl_Build/Frostl_Build.atlas"));
  SkeletonBinary binary = new SkeletonBinary(atlas);
  binary.setScale(4.0f);
  SkeletonData skeletonData = binary.readSkeletonData(Gdx.files.internal("Frostl_Build/Frostl_Build.skel"));
  Frostl_Build = new Skeleton(skeletonData);
  Frostl_Build.setPosition(300, 50);

  AnimationStateData stateData = new AnimationStateData(skeletonData);
  Frostl_BuildState = new AnimationState(stateData);
  Frostl_BuildState.addAnimation(0, "run", true, 0);
   }
   

   @Override
   public void resize(int width, int height) {
      if(camera != null) camera.setToOrtho(false, width, height);
      x = camera.position.x;
      y = camera.position.y;
   }

   @Override
   public void render() {
      Gdx.gl.glClearColor(0, 0, 0, 1);
      Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT | GL20.GL_DEPTH_BUFFER_BIT);

  Frostl_BuildState.update(Gdx.graphics.getDeltaTime());
  Frostl_BuildState.apply(Frostl_Build);
  Frostl_Build.updateWorldTransform();

  camera.update();
  camera.update();
  batch.getProjectionMatrix().set(camera.combined);
  batch.begin();
  renderer.draw(batch, Frostl_Build);
  batch.end();
  
  Gdx.graphics.setTitle("Fps: "+ Gdx.graphics.getFramesPerSecond());
   }

   @Override
   public void pause() {
   }

   @Override
   public void resume() {
   }

   @Override
   public void dispose() {

   }
}

Please help me BadLogic 🙁