Fatal error: Uncaught Error: Class "Maatwebsite\Excel\Imports\HeadingRowFormatter" not found in /var/www/html/Brinton/BrintonSalesPerformance/app/Imports/SalesDataImport.php:20 Stack trace: #0 {main} thrown in /var/www/html/Brinton/BrintonSalesPerformance/app/Imports/SalesDataImport.php on line 20