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Fatal error: Uncaught TypeError: sizeof(): Argument #1 ($value) must be of type Countable|array, null given in /www/wwwroot/devv8.startupworld.in/admin/class.export_excel.php:63 Stack trace: #0 /www/wwwroot/devv8.startupworld.in/admin/Export_report.php(33): ExportExcel->GenerateExcelFile() #1 {main} thrown in /www/wwwroot/devv8.startupworld.in/admin/class.export_excel.php on line 63