Google Maps error: Oops! Something went wrong. This page didn't load Google Maps correctly

Question

First time asking on stackoverflow, so be patient if I break some rule, tried my best to solve by myself searching for a solution, but had no luck.

I used a tool to

Answer 1

In my case, it was a restriction related issue. I had used wildcards as suggested by the example in the "Website restrictions" in the Google console

 *example.com/*

the wildcard did not work! I had to use the complete address of the page on which the API was implemented.

 mysite.com/contact-page/

I hope this is of help for someone.