After Install Cannot login to wp-admin

I received this Error Message after installation when i logged out and attempted to log back in wp-admin. Fatal error: Call to undefined function user_can() in /home/glasgow/public_html/wp-content/plugins/recent-facebook-posts/classes/class-rfb.php on line 62 I am running wordpress 3.0.1. Please help.

http://ww.wp.xz.cn/extend/plugins/recent-facebook-posts/