Is it necessary to protect the credentials of the Maps JavaScript API?

I've set up credentials for the Maps JavaScript API, but have implementation issues. On the one hand, when I specify the site to limit the requirements for using the key to the specified sites, the following message appears: An error has occurred.

On the other hand, if I check the Restrict API checkbox, strangely enough, it does not recognize all the coordinates, some yes, others not.

I set up the map with Elementor's Google Advanced Map.

Does anyone have any idea how to properly visualize the card and protect the credentials? Many thanks