Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Shared\Trend\BestFit" not found in /home/rvnet/public_html/bilgisorgulama.rvyazilim.net/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Shared/Trend/PolynomialBestFit.php:11 Stack trace: #0 {main} thrown in /home/rvnet/public_html/bilgisorgulama.rvyazilim.net/vendor/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Shared/Trend/PolynomialBestFit.php on line 11