Hello,
As of vBulletin 4.2.2 we’ve stopped suppressing notices and warnings. This is a change from all previous versions of the software.
In some environments more notices/warnings show than in others. In order to address the issue you just need to add the following line to your config.php file
define('SKIP_ALL_ERRORS', true);
You can see additional information about this change here:
http://www.vbulletin.com/forum/forum...-been-released