Fatal error: Uncaught Error: Class "PhpOffice\PhpSpreadsheet\Spreadsheet" not found in /home/f/fvictor5/new.private-stroy.ru/public_html/vendor/phpoffice/phpspreadsheet/samples/templates/chartSpreadsheet.php:11
Stack trace:
#0 {main}
  thrown in /home/f/fvictor5/new.private-stroy.ru/public_html/vendor/phpoffice/phpspreadsheet/samples/templates/chartSpreadsheet.php on line 11