We updated HotSpots to v5.1.11 from v3.1.1 on Joomla 2.5.28 and now it has a blank page.
Here is the original site where the old version is still working:
http://bartwest.com/connect/locations-map#!/catid=1
Here is the new site where the new version isn't:
http://bart.umbrellahost.net/connect/locations-map
Any ideas?