map only showing first result

I’ve installed the latest version of the plugin and have imported the stores from an export of another installation of the plugin. The import worked fine, but when I load the page, the map only shows one pin (for the first result) and zooms in on it. Even when I zoom out, the other results below the map aren’t showed.

https://ww.wp.xz.cn/plugins/gwebpro-store-locator/