As soon as I move my files to my host (at namecheap through Filezilla), only the navbar loads - I use the "codecourse" (previously phpacademy) OOP login/registration system, and the problem seems to be in the classes "../class/xxx.php" being called in "../core/init.php" - I haven't touched any of those files other than changing datebase, but no code has been touched.
The error log (error_log); http://pastebin.com/eZsKrftm
../core/init.php line 21;
require_once($_SERVER['DOCUMENT_ROOT'] . '/classes/' . $class . '.php');
I have no idea how to fix this, I did everything the error_log says is wrong really, I tried renaming all the classes to have a capital front-letter, but that doesn't seem to be it...
The weirdest part about this, is that it works just fine locally (xampp).

PHP Warning: require_once(classes/Cookie.php)has an uppercaseCwhen your filecookie.phphas not.devenvironment was Windows obviously, and now that you have moved your site to Unix Bases systems they are suddenly case sensitive with file names :)