nothing shown | WordPress.org

Hi,
i am interesting on this premium plugin. but first i want to try if it fits my needs. so i installed the free version to test. i tried to filter anything – so i created a filter-set (products) and added the shortcode [fe_widget] as shortcode in my page i want to place all products filtered by this plugin. it shows nothing.

i read the instructions on the pro-page, but i do not find anything to display something. i need some advice to start with this plugin.

 

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