just have a quick minute to respond here. I personally test also this API every year and every year the same, the amount of allowed requests/calls (quota) can be limited. So for example per default I can do X thousands requests but for whatever reason, every year this is set to 0 in my google console account where I manage this key. Maybe automatic limitation if key was not used for x weeks or months.
I need to expand this or generate fresh new key and then it works again.
Not 100% if this is your problem, but maybe check your key settings for something like this.
Tomorrow I can check where I have written the same in an older post explaining this more detailed. But if it fails on MWG it mostly is caused by inactive API key or limited quota in key configuration.
Will give another update tomorrow once I have found my older post.
Regards, Marcel Kutrieba Technical Support Engineer
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