hocineS

Problem:
User was having an issue with Google Map in secondary language
Solution:
There was a Javascript error is thrown during map setup. The error is "RefererNotAllowedMapError" and is documented by google as follow.

The current URL loading the Maps JavaScript API has not been added to the list of allowed referrers. Please check the referrer settings of your API key on the Google Cloud Platform Console.

See API keys in the Google Cloud Platform Console. For more information, see Using API Keys.

This is caused by a misconfiguration in Google Console. See the following articles for more detials.
https://developers.google.com/maps/documentation/javascript/error-messages

Also check this answer on stackoverflow, you may be encountering the same issue.
https://stackoverflow.com/a/38577184

This may also be relevant.
https://stackoverflow.com/questions/32600314/google-maps-api-referrer-not-allowed
Relevant Documentation:
https://developers.google.com/maps/documentation/javascript/error-messages