flask-restful VS Flask Google Maps

When it comes to Flask, in particular, there’re plenty of choices. And in fairness, not all frameworks are created equal. You’ve got flasgger, restx (successor of flask-restplus), flask-RESTful, and flask-smorest, to mention a few. How do you choose among those???

This has talked about in a similar matter: https://github.com/flask-restful/flask-restful/issues/221. However I'm still adamant about just using flask for exception handling. Unless I missed something,I'm having a hard time figuring out how to accomplish this in hopes to get rid of the string concatenation that flask_restful applies to the error message.

Considering the extension you've mentioned explicitly, the author of it has provided an explanation as to why he is not longer putting in any work, you can read about it here.

I am building my first ever flask app and I installed the flask-googlemaps extension which everything seems like it should be working.. API response is 200, no errors in console about api key, and only the following messages show (see image), which I don't think would be a problem, but please correct me if I am wrong as these are from the package itself so not too sure... But just wondering what I should be looking for to fix my app, as my screen loads empty.

No luck in Stack Overflow for the moment, so I'm posting this here as well :) I'm a newbie writing a Flask web app that displays in a Google Map a series of locations stored in a SQLite database. In order to do this I'm trying to use the Flask-GoogleMaps extension (https://github.com/flask-extensions/Flask-GoogleMaps), but even when I only try the example code given in the documentation the map won't display in the page. The server returns a 403 error: