Hello Ignesiyasloyala,
The request denied error is usually related to an improper setup in the Google Developer Console. Could you check the following:
1. Ensure Billing is enabled
2. Ensure the api key is set up and used in your project
3. The Geocoding and JavaScript API's are Enabled
4. The api key is properly restricted
If you keep receiving this error please open the browser console and note any additional errors you see there and we can help troubleshoot further.