Plugin not working

I’m not sure what may have broken it (WordPress update? Google Maps API changes?) but my Store Locator plugin isn’t working anymore.

Two messages I see in the console are:

Uncaught TypeError: Cannot read property ‘getRelatedTab’ of undefined

and

Can’t Load URL: The domain of this URL isn’t included in the app’s domains. To be able to load this URL, add all domains and subdomains of your app to the App Domains field in your app settings.

(Everything was working beautfully before, mind you…)

You can see the page for yourself at
https://beautysoclean.com/where-to-buy/

Any hints or tips appreciated!

thanks