OK, here's one for you -
I uploaded the files, installed the application, set the permissions and inserted the Google API key.
I can view the Map page and I see this -
I am thinking I'm mere minutes away from success, so I entered my location and I see this -
The map is gone.
So, I figure maybe it doesn't want to show me my own location, so I logged in with a second admin account and I see the very same thing. So I add the second admin location in a different location and it then indicates 2 users are shown, but there is still no map.
I figured I missed a step, so I went back through and checked everything. I wasn't able to see anything I had overlooked, so I removed the application entirely. I re-installed the app, added my location and got the very same results - no map. I logged in with the second admin account, added a second location and then I got a dialog box asking me where I wanted to save the file index.php. I went back and removed the first account's location and tried to re-enter it, whereupon it then asked me where to save index.php.
I got busy with another job and couldn't get back to this until this morning. I uninstalled the app, deleted all the files from the server, downloaded a fresh package and tried everything again. And I'm right back where I was yesterday afternoon. The page indicates my location has been added and one user is shown, but there is no map.
I'm certainly open to any suggestions...