couldnt render json object got from api using ember data

I am building an ember app which should send request to servlet and get the json response and display it. I tried it with ember data and the request is sent also the servlet is sending the right json response which I verified by printing in the console yet the ember couldnt render it.. it says router_js.js:1277 Uncaught (in promise) Error: More context objects were passed than there are dynamic segments for the route: error*

the json data that is received from the servlet

My: Array(7)
0: {CAPACITY: '2', PRICE: '1579', RTYPE: 'villa', ID: '5'}
1: {CAPACITY: '1', PRICE: '1526', RTYPE: 'villa', ID: '1'}
2: {CAPACITY: '4', PRICE: '1241', RTYPE: 'villa', ID: '6'}
3: {CAPACITY: '6', PRICE: '1500', RTYPE: 'villa', ID: '13'}

my route code

import Route from '@ember/routing/route';
import { inject as service } from '@ember/service';

export default class PostsRoute extends Route {
  @service store;
  model() {
    console.log(this.store.findAll('My'));
    return this.store.findAll('My');
  }
}

my model code

import Model from '@ember-data/model';
import DS from 'ember-data';
const { attr } = DS;
export default Model.extend({
  CAPACITY: attr('string'),
  RTYPE: attr('string'),
});

my adapter code:

import DS from 'ember-data';

export default DS.RESTAdapter.extend({
  host: 'http://localhost:8080/hotelres',

  pathForType() {
    return 'My';
  },
});

and my handlebar code

inside My


{{outlet}}

{{#each this.model as |my|}}
    <h1>{{my.CAPACITY}}</h1>
{{/each}}

my serializer code

import DS from 'ember-data';

export default DS.RESTSerializer.extend({
  normalizeResponse(store, primaryModelClass, payload, id, requestType) {
    console.log('control at serializer->post->normalize');
    payload = { My: payload };
    console.log(payload)
    return this._super(store, primaryModelClass, payload, id, requestType);
  },
});

It seems that ember is expecting an 'id' field in every json that it returns and since my json has only 'ID' and not 'id' it pops this error and also i found that after ember 3.6 there is a bug in ember that shows wrong error of 'more context should be passed' instead of the actual error. When i changed from 'ID' to 'id' it worked