Cannot listen to changes from plugin

[jjlabajo]

I created a plugin, hosted it in AWS.

Then had this code in main.js

Front.on('conversation', function (data) {
    console.log(data)
});
  
Front.on('no_conversation', function (data) {
    console.log(data)
});

Front.on('single_conversation', function (data) {
    console.log(data)
});

But it has an error:

Uncaught (in promise) ReferenceError: on is not a valid function for context noConversation.