Share to a page you manage not working correctly

When i share a page or article from my wordpress site it gives you the option to share it on a facebook page that you manage. When i use this option and select one of my pages, it posts to that page as me not as that page. I want to share my website articles on my page as my page not as me.

im pretty sure i have set everything up correctly is there any way to fix this?

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