How to use testAttachment or attachment within the mocha it using the last version of this plugin?

[Rogatto]

I tried to use both testAttachment and attachment, but all of them are returning the following error:

TypeError: Cannot read properties of null (reading 'addAttachment')

Because this error occurred during a after all hook we are skipping the remaining tests in the current suite: Changing background color t...
at ./node_modules/@shelex/cypress-allure-plugin/reporter/allure-cypress/AllureInterface.js.Allure.testAttachment (webpack:///./node_modules/@shelex/cypress-allure-plugin/reporter/allure-cypress/AllureInterface.js:22:0)
at Context.eval (webpack:///./cypress/e2e/home-page/change.background.color.spec.js:29:15)

Code:

import HomePage from "../../pages/HomePage";

const allure = Cypress.Allure.reporter.getInterface();

describe('Changing background color to white on home page', () => {

beforeEach(() => {
    
    allure.epic('Home Page');
    allure.feature('Changing background color to white on home page');
    allure.severity('critical');
});

it('Clicking on the change background color bottom on home page', () => {
    cy.visit("/")
    HomePage.changeBackgroundColor()

    HomePage.elements.backGroundElement()
    .should('have.css', 'background-color')
    .and('eq', 'rgb(255, 255, 255)')

    **allure.testAttachment("test","test123","text/plain")**
    const userId = Cypress.env('userId')
    cy.log("log here: " + userId)
    cy.screenshot()
});

});

[Shelex]

You are mixing up sync and async api, so at point when it is executed, async calls yet not happened.
in test I would recommend to use cy.allure().attachment()