Fatal error: Uncaught Error: Undefined constant "PHPEXCEL_ROOT" in /export/vol2/httpd/htdocs/administration/facilities/includes/dhtmlx/codebase-php/lib/PHPExcel/Autoloader.php:49
Stack trace:
#0 /export/vol2/httpd/htdocs/administration/facilities/includes/dhtmlx/codebase-php/lib/PHPExcel/Autoloader.php(29): PHPExcel_Autoloader::Load()
#1 {main}
  thrown in /export/vol2/httpd/htdocs/administration/facilities/includes/dhtmlx/codebase-php/lib/PHPExcel/Autoloader.php on line 49