DataTables Editor Internal Server Error

Hi,

I've uploaded the dataTables editor and it runs the page with a AJAX error. MySQL is working fine on the site with PHP. The live page with the error is here http://messy-monkeys.com/DataTables-1.9.4/extras/Editor-1.2.3-Trial/examples/

and in Chrome I get the following error message....

GET http://messy-monkeys.com/DataTables-1.9.4/extras/Editor-1.2.3-Trial/examples/php/browsers.php?_=1360676062335 500 (Internal Server Error)

Any pointers would be much appreciated.
Ian