[Plugin: Wordbooker] Posting Issues

Wordbooker does not seem to be working properly for a while. At first, it kept invalidating my session almost every day. I authorized Wordbooker every time I log in. This problem is solved with the latest update. However there is still something going wrong. Or maybe I am doing it wrong?

I want every post on the site to be published on the Facebook page of the website. Facebook page is created by me and I am the administrator on the WordPress side. I set every post to be published on the Facebook account belonging to me and allowed non Wordbooker users to publish posts. However any other user on the WordPress gets the same warning indicating “Wordbooker Blog level settings are in force.” while posting. And needless to say, their posts are not published on the Facebook page.

Wordbooker appears to be configured and working fine on the Settings > Wordbooker page. Here are General Posting Options, and warning.

Am I missing something here?

http://ww.wp.xz.cn/extend/plugins/wordbooker/