Sorted:

Can't access site after plugin activation-Collection of common programming errors

problem about fosfacebookbundle-Collection of common programming errors

problem about facebook-apps-Collection of common programming errors

Fatal error: Uncaught CurlException: 7 in base_Facebook.php on line 967-Collection of common programming errors

“Fatal error: Cannot redeclare class FacebookApiException-Collection of common programming errors

Display facebook comments made on site-Collection of common programming errors

Facebook App Fatal error: Uncaught OAuthException:-Collection of common programming errors

'Fatal error: Class 'CURLFile' not found' error in Facebook PHP Application for 'upload photo to user's timeline'-Collection of common programming errors

Fatal error message: uncaught exception 102-Collection of common programming errors

PHP Fatal error: Call to a member function getUser() on a non-object-Collection of common programming errors