Cannot start the server

[CodeBreaker444]

I cannot start the server but your github pages works without an issue. How is possible i think maybe with es6 standards but then it should be the same when i open you github.io link for cesium vr.

Any inputs would be greate.

I have also tried to load a 3d tileset into the scene , it downloading the tileset from my localhost but i cannot see the model. below code i have added
` const modelUrl = "localhost:8080/sample/tileset.json";
console.log(modelUrl);

  const tileSet = await Cesium3DTileset.fromUrl(
    // 'http://localhost:8000/cache-models/3d-tiles/tileset.json',
    modelUrl,
    { debugShowBoundingVolume: true, debugColorizeTiles: true },
  );
  console.log(tileSet);
  scene.primitives.add(tileSet);
  scene.screenSpaceCameraController.maximumZoomDistance = 300;

`