A. If you need to download an earlier version of the  WordPress StoreLocator Plus developer plugin, go to the WP developers plugin directory.  Select the version you need , download.

You should always back up your site before updating to avoid issues that can occur , especially if you have not been updating your site on a regular basis.  We recommend JetPack.

 

You may also want to check out this article:

Downgrading Store Locator Plus