Warning: Use of undefined constant PHPEXCEL_ROOT - assumed 'PHPEXCEL_ROOT' (this will throw an Error in a future version of PHP) in /home/sybtech/jibril-client.sybtech.ma/app/Classes/phpgrid/excel/PHPExcel/Autoloader.php on line 77

Fatal error: Uncaught Error: Class 'PHPExcel_Shared_String' not found in /home/sybtech/jibril-client.sybtech.ma/app/Classes/phpgrid/excel/PHPExcel/Autoloader.php:36 Stack trace: #0 {main} thrown in /home/sybtech/jibril-client.sybtech.ma/app/Classes/phpgrid/excel/PHPExcel/Autoloader.php on line 36