Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Calculation\LookupRef\LookupRefValidations" not found in D:\web\teleflex\tst\assets\phpspreadsheet\Calculation\LookupRef\Sort.php:12 Stack trace: #0 {main} thrown in D:\web\teleflex\tst\assets\phpspreadsheet\Calculation\LookupRef\Sort.php on line 12