How to make something on flying-squid plugin?

[epicfails1234567890-crypto]

I have this code:

const mcServer = require('flying-squid')

mcServer.createMCServer({
  'motd': 'Servidor de pruebas con Flying Squid',
  'port': 25565,
  'max-players': 50,
  'online-mode': true,
  'logging': true,
  'gameMode': 0,
  'difficulty': 2,
  'worldFolder': 'world',
  'generation': {
    'name': 'diamond_square',
    'options': {
      'worldHeight': 64
    }
  },
  'kickTimeout': 10000,
  'plugins': {

  },
  'modpe': false,
  'view-distance': 2,
  'player-list-text': {
    'header': 'Flying squid',
    'footer': 'Test server'
  },
  'everybody-op': true,
  'max-entities': 100,
  'version': '1.16.4'
})

And i tried many things, like setBlock(x,y,z) or something, but nothing works on my server. What can i do? Thanks for helping anyway!

[epicfails1234567890-crypto]

I tried this, but it stops after no more than 1 minute:

setInterval(() => {
  server.players.forEach(
    p => { p.chat("numba: "+Math.floor(Math.random()*1000));
  });
}, 1000);

[epicfails1234567890-crypto]

And i noted that the mc server stops each minute, with any nodejs script...