Fatal error: Uncaught Error: Class "Illuminate\Mail\Mailable" not found in /home/portalcruecero/public_html/pagina.iespdecrucero.edu.pe/app/Mail/BoletinMailable.php:13 Stack trace: #0 {main} thrown in /home/portalcruecero/public_html/pagina.iespdecrucero.edu.pe/app/Mail/BoletinMailable.php on line 13