Calendar Calling by REST API

I'm trying to display the current event's title and details on the personal details calendar using a REST API. Although the event details appear correctly in the console, they are not showing up on the calendar interface. Could you please help me identify what might be going wrong?

Javascript code:-

define([  'vb/action/actionChain',  'vb/action/actions',  'vb/action/actionUtils',], (ActionChain, Actions, ActionUtils) => {  'use strict';
  class vbEnterListener extends ActionChain {    /**     * @param {Object} context     */    async run(context) {      const { $page, $flow, $application, $constants, $variables } = context;
      try {        const response = await Actions.callRest(context, {          endpoint: 'Calendar_Data/getCalendar_data',          uriParams: {            'p_person_number': '400035',          },        });