Fatal error: Uncaught Error: Undefined constant "PHPEXCEL_ROOT" in /home/tc7erp/public_html/assets/third_party/PHPExcel/Shared/trend/polynomialBestFitClass.php:29
Stack trace:
#0 {main}
thrown in /home/tc7erp/public_html/assets/third_party/PHPExcel/Shared/trend/polynomialBestFitClass.php on line 29