frontile.dev/docs/forms/<ChangesetForm> not rendering

[hotsoft-desenv4]

Describe the bug
I've tried to use frontline / addon, but addon throws error message and not render the form.

Error-1

vendor.js:60092 
Error occurred while rendering:

- While rendering:
  application
    centro_custos/new
      centro-custos/centro-custos-form
        changeset-form

Error-2

vendor.js:43391 
Uncaught (in promise) Error: Assertion Failed: @changeset must be defined on <ChangesetForm> component
    at Object.assert (vendor.js:43391)
    at new ChangesetForm (vendor.js:101616)
    at EmberGlimmerComponentManager.createComponent (vendor.js:104267)
    at EmberGlimmerComponentManager.createComponent (vendor.js:104541)
    at vendor.js:15782
    at deprecateMutationsInTrackingTransaction (vendor.js:61496)
    at CustomComponentManager.create (vendor.js:15781)
    at Object.evaluate (vendor.js:57070)
    at AppendOpcodes.evaluate (vendor.js:55866)
    at LowLevelVM.evaluateSyscall (vendor.js:59047)

To Reproduce
Steps to reproduce the behavior:

1. Go to 'https://frontile.dev/docs/changeset-form/usage'
2. Copy the code snippet from components/form-data-model.js and paste on app/components/centro-custos/centro-custos-form.js
3. Copy the code snippet from components/standard.hbs and paste on app/components/centro-custos/centro-custos-form.hbs
   4.Then click on 'http://0.0.0.0:4200/centro_custos/new'
4. See error

Expected behavior
I was expected the render of the form with your input field

Screenshots