[Plugin: Allow PHP in Posts and Pages] FUNCTION DOES NOT EXIST

Hi,
I update the Allow PHP in Post and Pages plugin to the newest version, Version 3. and all my post are missing. It only show “FUNCTION DOES NOT EXIST” in the middle of my pages. Please help. What should i do. ?

Thanks

http://ww.wp.xz.cn/extend/plugins/allow-php-in-posts-and-pages/