Step 1:
Check if the Google maps API is working
Step 2:
Make sure you imported the location/address correctly.
Step 3:
Install and activate MyListing child theme. Go to appearance > editor > functions.php and add the snippet below after //happy coding.
Step 4:
Set the restrictions to "None" temporarily in your Google API console
Step 5
Visit this URL
Yoursite.com/?geolocate_listings=1
This will geolocate all listings and they will be shown on the explore page map