Feed not updating since first time installed

Hello, I’ve installed the plugin and put it on a page, and the feed at that time showed up on the page. But after that, I’ve made some update posts on my facebook feed, and it’s not reflecting on my webpage.

[efb_feed fanpage_url=”bhoomischool” layout=”full” image_size=”normal” type=”page” post_by=”me” show_logo=”1″ show_image=”1″ show_like_box=”1″ post_number=”20″ post_limit=”20″ cache_unit=”2″ cache_duration=”hours”]

http://bhoomischool.org/bhoomi-kindergarten-facebook-blog/

Please let me know what I can do. Thanks!

https://wordpress.org/plugins/easy-facebook-likebox/