[Plugin: Google Maps via Store Locator Plus] map not working after update

Today I updated my version of Store Locator Plus to the most resent version. After the update, I realized that it had deleted all of my previously imported locations. I re-uploaded the locations, but now my map is not showing any of them. I have looked at all the settings and cannot figure out why this is happening– does anyone have any insight? Do I need to get a new API code or anything?

http://wordpress.org/extend/plugins/store-locator-le/