Fatal error: Uncaught Error: Class "Illuminate\Notifications\Notification" not found in /var/www/test-erp.weareopenminds.com/html/app/Notifications/InvoiceSubmitted.php:11 Stack trace: #0 {main} thrown in /var/www/test-erp.weareopenminds.com/html/app/Notifications/InvoiceSubmitted.php on line 11