I have installed the version 3.5.1 and on zooming out on the front end from my first created hotspot 'back to the main map' I get the following error messages:

Notice: Trying to get property of non-object in /share/MD0_DATA/Web/DEV/components/com_hotspots/views/hotspots/view.html.php on line 70

Fatal error: Call to a member function get() on a non-object in /share/MD0_DATA/Web/DEV/components/com_hotspots/views/hotspots/view.html.php on line 72

Also a different error is shown in the Admin Dashboard: Error loading feed data. Not totally surprising since I have only just installed it and created my first hotspot, but a little unexpected.

Note this is on my dev site, where I have all error messages being displayed.