ApiError: Problems resolving hue bridges, HTTP error status: 429

[FJ05]

When I use the example code shown in the documentations I get this error message: ApiError: Problems resolving hue bridges, HTTP error status: 429

This is the example code:

const v3 = require('node-hue-api').v3;
const LightState = v3.lightStates.LightState;

const USERNAME = User
  // The name of the light we wish to retrieve by name
  , LIGHT_ID = 2
;

v3.discovery.nupnpSearch()
  .then(searchResults => {
    const host = searchResults[0].ipaddress;
    return v3.api.createLocal(host).connect(USERNAME);
  })
  .then(api => {
    // Using a LightState object to build the desired state
    const state = new LightState()
      .on()
      .ct(200)
      .brightness(100)
    ;
    
    return api.lights.setLightState(LIGHT_ID, state);
  })
  .then(result => {
    console.log(`Light state change was successful? ${result}`);
  })
;

This code worked fine for 5 minutes and then it just stopped working...