Please make sure you are using the latest version of the plugin (4.5.1). If not, then please update.
If you are using the latest version, then could you please link me to a page where the search is active, and also provide temporary FTP and back-end details to your test environment. (you should open a new support ticket for this in the support forums, not here in the bug reporting section).Best,
If you like my products, don't forget to rate them on codecanyon :)