You just need to perform the following steps:
Get your personal Google API key at the following page. Press Get a key > Select or Create Project > Enable API button, copy your key to clipboard and click on Finish button.
Open the js/script.js file on your server and locate the Google map script, it should look like the line below:
Here API_KEY is your newly created API key. The result should be as follows:
Refresh your website. Google Map works properly now.
This is the end of the tutorial. Now you know how to deal with Google maps do not show up (due to API Key) issue in Multipurpose Website Templates.
Feel free to check the detailed video tutorial below:Multipurpose Website Templates. Google maps do not show up (API Key issue)