Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in /home/admin/public_html/demo.admin.smartera.co.in/app/Http/Controllers/InvoicesController.php:18 Stack trace: #0 {main} thrown in /home/admin/public_html/demo.admin.smartera.co.in/app/Http/Controllers/InvoicesController.php on line 18