Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Calculation\CalculationBase" not found in E:\phpProject\TEST\fr_epr\fr_epr_reg\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Calculation\CalculationLocale.php:5 Stack trace: #0 {main} thrown in E:\phpProject\TEST\fr_epr\fr_epr_reg\vendor\phpoffice\phpspreadsheet\src\PhpSpreadsheet\Calculation\CalculationLocale.php on line 5