Fatal error: Uncaught Error: Undefined constant "PHPEXCEL_ROOT" in C:\melius\michael.douglas\web\prod\credpay\_common\classes\PHPExcel\Shared\trend\trendClass.php:3 Stack trace: #0 {main} thrown in C:\melius\michael.douglas\web\prod\credpay\_common\classes\PHPExcel\Shared\trend\trendClass.php on line 3