I did grep -r "global_start" . and got the following:
Code:
Binary file ./php-cgi.core matches
./global.php:($hook = vBulletinHook::fetch_hook('global_start')) ? eval($hook) : false;
Binary file ./admincp/php-cgi.core matches
Binary file ./archive/php-cgi.core matches
./includes/xml/hooks_vbulletin.xml: <hook>global_start</hook>
Currently in my plugin manager, it's empty. I uninstalled every hook I had to try
and eliminate the 500 internal error before I found this PHP error in the logs. I also
removed the hook's files/folders.