Don't charge newest post

Hi
I activated the plugin, and it seemed to work but today I realized that instead of not charging the new post.

The site is https://www.panicoconcerti.it/panicoconcerti/
and these are the widget’s settings:

[efb_feed fanpage_url = “concertipanico” layout = “fullwidth” image_size = “album” type = “page” post_by = “others” show_logo = “1” show_image = “1” show_like_box = “1” post_number = “5” = post_limit “10 “cache_unit =” 3 “cache_duration =” minutes “]

how to solve?

regards

https://www.ads-software.com/plugins/easy-facebook-feed/