Fatal error: Uncaught Error: Class 'Swift_Transport_AbstractSmtpEventSupportTest' not found in /home/clienti2020/public_html/novaballet.it/vendor/swiftmailer/swiftmailer/tests/unit/Swift/Transport/EsmtpTransportTest.php:3 Stack trace: #0 /home/clienti2020/public_html/novaballet.it/vendor/swiftmailer/swiftmailer/tests/unit/Swift/Transport/EsmtpTransport/ExtensionSupportTest.php(3): require_once() #1 {main} thrown in /home/clienti2020/public_html/novaballet.it/vendor/swiftmailer/swiftmailer/tests/unit/Swift/Transport/EsmtpTransportTest.php on line 3