Fatal error: Uncaught Error: Class 'Illuminate\Mail\Mailable' not found in /var/www/html/spaceagent/micadolayout-access/app/Mail/RequestAnUpgradeToAdmin.php:12 Stack trace: #0 {main} thrown in /var/www/html/spaceagent/micadolayout-access/app/Mail/RequestAnUpgradeToAdmin.php on line 12