The plugin duplicate all products

Hi! I’m developing a woocommerce store with your plugin and LotusFlower theme…

I installed the plugin with success but when I use the filters it duplicate all products…

How can I resolve this problem?

This is the site url: http://store.monobi.it/?post_type=product&filter_color=39

https://ww.wp.xz.cn/plugins/yith-woocommerce-ajax-navigation/