An error occurs when customizing Google Maps. How to fix?

Question

Google Maps

I customize the Google map according to the tutorial from habr ( https://habr.com/ru/post/324880/).
You need to change the styles of the map using the json array. And everything seems to work out and the styles are loaded, but immediately disappear.
Here is the site: 9-shop.ru/logistic/#section8 The
same thing happens in the tutorial demo: google-map.tutmee-pro.ru
How to fix it?

Answer 1

The Google Map API's policies have been changed, as a result of which it is necessary to confirm the account's solvency.
The whole problem is in the api key.
Now on many sites you can see the message "There was a problem loading Google Maps on this page.".
You need to get the key according to the instructions and at some stage you will need to connect a bank card for payments.
If you do not exceed the free limits, then nothing will be charged.