Activated Bulletproof Security n everything gone!fatal error n cant open ny page

just installed and activated bulletproof security on my wordpress site http://www.technounited.asia/art and everything went POOF!!!now i cant open even a single page as it says the folowing:-

Warning: require_once(/home/a7332529/public_html/art/wp-content/plugins/facebook/open-graph-protocol.php) [function.require-once]: failed to open stream: No such file or directory in /home/a7332529/public_html/art/wp-content/plugins/facebook/facebook.php on line 223

Fatal error: require_once() [function.require]: Failed opening required ‘/home/a7332529/public_html/art/wp-content/plugins/facebook/open-graph-protocol.php’ (include_path=’.:/usr/lib/php:/usr/local/lib/php’) in /home/a7332529/public_html/art/wp-content/plugins/facebook/facebook.php on line 223