Does your Google APi have a referrer restriction? If I do not add anything into the search form and change radius and click on find locations the locations appear. But when I type in a zip code it appears the geocoder is not working. I am going over the issue with lance. The geocoder APi on your site does not seem to be working correctly. Did you update your APIs when you added a billing account with Google?
I cannot see the screenshot you attached due to its size , but thats ok. The developer and I are mystified because we cannot reproduce this issue in any of our test sites or domains. a couple of people have reported similar. I sent Lance your plugin environment. So unfortunately we need you to provide us a little more help to resolve the issue or to find the conflict with your configuration or with another plugin.
Could you go to the SLP General/Admin and enable WP debug. Please send us the debug log. , send it to the contact us support