Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Calculation\LookupRef\LookupBase" not found in /var/www/erp/PhpSpreadsheet-master/src/PhpSpreadsheet/Calculation/LookupRef/VLookup.php:10
Stack trace:
#0 {main}
thrown in /var/www/erp/PhpSpreadsheet-master/src/PhpSpreadsheet/Calculation/LookupRef/VLookup.php on line 10