Ng2woo - No route was found matching the URL and request method

I’v tried using the ng2woo wrapper for Angular in order to use products from WooCommerce in my Ionic App. This is my App Module page:

import { WooApiModule, WooApiService } from 'ng2woo';

const WooCommerceConfig = {
  url: 'https://colorvet.ro/wp-json/wc/v1/products',
  consumerKey: 'ck_ebb211a8a50720e50473d48fb40ce9a01fcbcfcd',
  consumerSecret: 'cs_eef3bbe757c2a4266fcb0de8c06a002e23dd08ad',
  wpAPI: true,
  version: 'wc/v1'
};

@NgModule({
  declarations: [
    MyApp,

  ],
  imports: [
    BrowserModule,
    IonicModule.forRoot(MyApp),
    HttpModule,
    WooApiModule.forRoot(WooCommerceConfig),
    AngularFireDatabaseModule,
    AngularFireModule.initializeApp(firebaseConfig),  ],
  bootstrap: [IonicApp],
  entryComponents: [
    MyApp,

  ],
  providers: [
    StatusBar,
    SplashScreen,
    BrowserTab,
    Camera,
    WooApiService,
    DatePicker,
    EmailComposer,
    {provide: ErrorHandler, useClass: IonicErrorHandler},

  ]
})
export class AppModule {}

And this is my Ionic page where I try to receive the products:

import { Component } from '@angular/core';
import { IonicPage, NavController, NavParams, AlertController } from 'ionic-angular';
import { WooApiService } from 'ng2woo';


@IonicPage()
@Component({
  selector: 'page-shop',
  templateUrl: 'shop.html',
})
export class ShopPage {

  produse: any[];
  WooCommerce: any;

  constructor(public navCtrl: NavController, public navParams: NavParams,  private alertCtrl: AlertController,private woo: WooApiService) {  }

  ionViewDidLoad() {

    this.woo.fetchItems('products')
    .then(products => console.log(products)
    .catch(error => console.log(error));

  }
}

When I run the app however, I keep getting the same error:

"No route was found matching the URL and request method"