Fatal error: Uncaught Error: Class "App\Http\Controllers\Controller" not found in /home/appdemo/public_html/samena-mailer/app/Http/Controllers/UnsubscribeRecipientController.php:12 Stack trace: #0 {main} thrown in /home/appdemo/public_html/samena-mailer/app/Http/Controllers/UnsubscribeRecipientController.php on line 12