Fatal error: Uncaught Error: Class "Illuminate\Mail\Mailable" not found in /home/cacart/techapp.cacart.ca/backend/app/Mail/EmployeeInvitationMail.php:16 Stack trace: #0 {main} thrown in /home/cacart/techapp.cacart.ca/backend/app/Mail/EmployeeInvitationMail.php on line 16