[Plugin: WP-Filebase Download Manager] [wpfilebase tag=browser /] not working

the [wpfilebase tag=browser /] shortcode does not work on the post or page…
this shortcode shows the “file tree view”
The WP-Filebase Settings > file browser does not work too.
I selected a new page on the Post ID of the file browser option but it does not work!!

please help!

http://ww.wp.xz.cn/extend/plugins/wp-filebase/