Unsuccessful using Node-turn as a library

[ANEFA]

Hi, the turn server is working with the standalone approach. However, the library approach is not working. I slightly modified the sample code provided in the README. Here's my code

var Turn = require('node-turn');
var server = new Turn({
// set options
authMech: 'long-term',
credentials: {
username: "password"
}
});
console.log('Attempting to start TURN server...');

server.start(() => {
console.log('TURN server started');
});

The output only shows "Attempting to start TURN server..." and then it hangs