[2025-12-01 00:00:03] staging.ERROR: Failed to authenticate on SMTP server with username "4493a4131c4dc9" using 3 possible authenticators. Authenticator CRAM-MD5 returned Expected response code 250 but got an empty response. Authenticator LOGIN returned Expected response code 250 but got an empty response. Authenticator PLAIN returned Expected response code 250 but got an empty response. {"exception":"[object] (Swift_TransportException(code: 0): Failed to authenticate on SMTP server with username \"4493a4131c4dc9\" using 3 possible authenticators. Authenticator CRAM-MD5 returned Expected response code 250 but got an empty response. Authenticator LOGIN returned Expected response code 250 but got an empty response. Authenticator PLAIN returned Expected response code 250 but got an empty response. at /var/www/html/masscer/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/Esmtp/AuthHandler.php:191)
[stacktrace]
#0 /var/www/html/masscer/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/EsmtpTransport.php(371): Swift_Transport_Esmtp_AuthHandler->afterEhlo(Object(Swift_SmtpTransport))
#1 /var/www/html/masscer/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(148): Swift_Transport_EsmtpTransport->doHeloCommand()
#2 /var/www/html/masscer/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mailer.php(65): Swift_Transport_AbstractSmtpTransport->start()
#3 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Mail/Mailer.php(521): Swift_Mailer->send(Object(Swift_Message), Array)
#4 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Mail/Mailer.php(288): Illuminate\\Mail\\Mailer->sendSwiftMessage(Object(Swift_Message))
#5 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Notifications/Channels/MailChannel.php(65): Illuminate\\Mail\\Mailer->send(Object(Illuminate\\Support\\HtmlString), Array, Object(Closure))
#6 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Notifications/NotificationSender.php(148): Illuminate\\Notifications\\Channels\\MailChannel->send(Object(Spatie\\Backup\\Notifications\\Notifiable), Object(Spatie\\Backup\\Notifications\\Notifications\\BackupHasFailed))
#7 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Notifications/NotificationSender.php(106): Illuminate\\Notifications\\NotificationSender->sendToNotifiable(Object(Spatie\\Backup\\Notifications\\Notifiable), '273df219-179e-4...', Object(Spatie\\Backup\\Notifications\\Notifications\\BackupHasFailed), 'mail')
#8 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Support/Traits/Localizable.php(19): Illuminate\\Notifications\\NotificationSender->Illuminate\\Notifications\\{closure}()
#9 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Notifications/NotificationSender.php(109): Illuminate\\Notifications\\NotificationSender->withLocale(NULL, Object(Closure))
#10 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Notifications/NotificationSender.php(79): Illuminate\\Notifications\\NotificationSender->sendNow(Array, Object(Spatie\\Backup\\Notifications\\Notifications\\BackupHasFailed))
#11 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Notifications/ChannelManager.php(39): Illuminate\\Notifications\\NotificationSender->send(Array, Object(Spatie\\Backup\\Notifications\\Notifications\\BackupHasFailed))
#12 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Notifications/RoutesNotifications.php(18): Illuminate\\Notifications\\ChannelManager->send(Object(Spatie\\Backup\\Notifications\\Notifiable), Object(Spatie\\Backup\\Notifications\\Notifications\\BackupHasFailed))
#13 /var/www/html/masscer/vendor/spatie/laravel-backup/src/Notifications/EventHandler.php(33): Spatie\\Backup\\Notifications\\Notifiable->notify(Object(Spatie\\Backup\\Notifications\\Notifications\\BackupHasFailed))
#14 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Events/Dispatcher.php(404): Spatie\\Backup\\Notifications\\EventHandler->Spatie\\Backup\\Notifications\\{closure}(Object(Spatie\\Backup\\Events\\BackupHasFailed))
#15 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Events/Dispatcher.php(249): Illuminate\\Events\\Dispatcher->Illuminate\\Events\\{closure}('Spatie\\\\Backup\\\\E...', Array)
#16 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Foundation/helpers.php(450): Illuminate\\Events\\Dispatcher->dispatch('Spatie\\\\Backup\\\\E...')
#17 /var/www/html/masscer/vendor/spatie/laravel-backup/src/Tasks/Backup/BackupJob.php(289): event(Object(Spatie\\Backup\\Events\\BackupHasFailed))
#18 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Foundation/helpers.php(669): Spatie\\Backup\\Tasks\\Backup\\BackupJob->Spatie\\Backup\\Tasks\\Backup\\{closure}()
#19 /var/www/html/masscer/vendor/spatie/laravel-backup/src/Tasks/Backup/BackupJob.php(292): rescue(Object(Closure), Object(Closure))
#20 /var/www/html/masscer/vendor/spatie/laravel-backup/src/Tasks/Backup/BackupJob.php(159): Spatie\\Backup\\Tasks\\Backup\\BackupJob->sendNotification(Object(Spatie\\Backup\\Events\\BackupHasFailed))
#21 /var/www/html/masscer/vendor/spatie/laravel-backup/src/Commands/BackupCommand.php(56): Spatie\\Backup\\Tasks\\Backup\\BackupJob->run()
#22 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(36): Spatie\\Backup\\Commands\\BackupCommand->handle()
#23 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Container/Util.php(40): Illuminate\\Container\\BoundMethod::Illuminate\\Container\\{closure}()
#24 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(93): Illuminate\\Container\\Util::unwrapIfClosure(Object(Closure))
#25 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(37): Illuminate\\Container\\BoundMethod::callBoundMethod(Object(Illuminate\\Foundation\\Application), Array, Object(Closure))
#26 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Container/Container.php(653): Illuminate\\Container\\BoundMethod::call(Object(Illuminate\\Foundation\\Application), Array, Array, NULL)
#27 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Console/Command.php(136): Illuminate\\Container\\Container->call(Array)
#28 /var/www/html/masscer/vendor/symfony/console/Command/Command.php(298): Illuminate\\Console\\Command->execute(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Illuminate\\Console\\OutputStyle))
#29 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Console/Command.php(121): Symfony\\Component\\Console\\Command\\Command->run(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Illuminate\\Console\\OutputStyle))
#30 /var/www/html/masscer/vendor/spatie/laravel-backup/src/Commands/BaseCommand.php(16): Illuminate\\Console\\Command->run(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))
#31 /var/www/html/masscer/vendor/symfony/console/Application.php(1028): Spatie\\Backup\\Commands\\BaseCommand->run(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))
#32 /var/www/html/masscer/vendor/symfony/console/Application.php(299): Symfony\\Component\\Console\\Application->doRunCommand(Object(Spatie\\Backup\\Commands\\BackupCommand), Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))
#33 /var/www/html/masscer/vendor/symfony/console/Application.php(171): Symfony\\Component\\Console\\Application->doRun(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))
#34 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Console/Application.php(94): Symfony\\Component\\Console\\Application->run(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))
#35 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(129): Illuminate\\Console\\Application->run(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))
#36 /var/www/html/masscer/artisan(37): Illuminate\\Foundation\\Console\\Kernel->handle(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))
#37 {main}
"} 
[2025-12-01 00:00:03] staging.ERROR: Failed to authenticate on SMTP server with username "4493a4131c4dc9" using 3 possible authenticators. Authenticator CRAM-MD5 returned Expected response code 250 but got an empty response. Authenticator LOGIN returned Expected response code 250 but got an empty response. Authenticator PLAIN returned Expected response code 250 but got an empty response. {"exception":"[object] (Swift_TransportException(code: 0): Failed to authenticate on SMTP server with username \"4493a4131c4dc9\" using 3 possible authenticators. Authenticator CRAM-MD5 returned Expected response code 250 but got an empty response. Authenticator LOGIN returned Expected response code 250 but got an empty response. Authenticator PLAIN returned Expected response code 250 but got an empty response. at /var/www/html/masscer/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/Esmtp/AuthHandler.php:191)
[stacktrace]
#0 /var/www/html/masscer/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/EsmtpTransport.php(371): Swift_Transport_Esmtp_AuthHandler->afterEhlo(Object(Swift_SmtpTransport))
#1 /var/www/html/masscer/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Transport/AbstractSmtpTransport.php(148): Swift_Transport_EsmtpTransport->doHeloCommand()
#2 /var/www/html/masscer/vendor/swiftmailer/swiftmailer/lib/classes/Swift/Mailer.php(65): Swift_Transport_AbstractSmtpTransport->start()
#3 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Mail/Mailer.php(521): Swift_Mailer->send(Object(Swift_Message), Array)
#4 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Mail/Mailer.php(288): Illuminate\\Mail\\Mailer->sendSwiftMessage(Object(Swift_Message))
#5 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Notifications/Channels/MailChannel.php(65): Illuminate\\Mail\\Mailer->send(Object(Illuminate\\Support\\HtmlString), Array, Object(Closure))
#6 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Notifications/NotificationSender.php(148): Illuminate\\Notifications\\Channels\\MailChannel->send(Object(Spatie\\Backup\\Notifications\\Notifiable), Object(Spatie\\Backup\\Notifications\\Notifications\\BackupHasFailed))
#7 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Notifications/NotificationSender.php(106): Illuminate\\Notifications\\NotificationSender->sendToNotifiable(Object(Spatie\\Backup\\Notifications\\Notifiable), 'e74a44b2-b28c-4...', Object(Spatie\\Backup\\Notifications\\Notifications\\BackupHasFailed), 'mail')
#8 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Support/Traits/Localizable.php(19): Illuminate\\Notifications\\NotificationSender->Illuminate\\Notifications\\{closure}()
#9 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Notifications/NotificationSender.php(109): Illuminate\\Notifications\\NotificationSender->withLocale(NULL, Object(Closure))
#10 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Notifications/NotificationSender.php(79): Illuminate\\Notifications\\NotificationSender->sendNow(Array, Object(Spatie\\Backup\\Notifications\\Notifications\\BackupHasFailed))
#11 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Notifications/ChannelManager.php(39): Illuminate\\Notifications\\NotificationSender->send(Array, Object(Spatie\\Backup\\Notifications\\Notifications\\BackupHasFailed))
#12 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Notifications/RoutesNotifications.php(18): Illuminate\\Notifications\\ChannelManager->send(Object(Spatie\\Backup\\Notifications\\Notifiable), Object(Spatie\\Backup\\Notifications\\Notifications\\BackupHasFailed))
#13 /var/www/html/masscer/vendor/spatie/laravel-backup/src/Notifications/EventHandler.php(33): Spatie\\Backup\\Notifications\\Notifiable->notify(Object(Spatie\\Backup\\Notifications\\Notifications\\BackupHasFailed))
#14 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Events/Dispatcher.php(404): Spatie\\Backup\\Notifications\\EventHandler->Spatie\\Backup\\Notifications\\{closure}(Object(Spatie\\Backup\\Events\\BackupHasFailed))
#15 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Events/Dispatcher.php(249): Illuminate\\Events\\Dispatcher->Illuminate\\Events\\{closure}('Spatie\\\\Backup\\\\E...', Array)
#16 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Foundation/helpers.php(450): Illuminate\\Events\\Dispatcher->dispatch('Spatie\\\\Backup\\\\E...')
#17 /var/www/html/masscer/vendor/spatie/laravel-backup/src/Commands/BackupCommand.php(63): event(Object(Spatie\\Backup\\Events\\BackupHasFailed))
#18 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(36): Spatie\\Backup\\Commands\\BackupCommand->handle()
#19 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Container/Util.php(40): Illuminate\\Container\\BoundMethod::Illuminate\\Container\\{closure}()
#20 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(93): Illuminate\\Container\\Util::unwrapIfClosure(Object(Closure))
#21 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Container/BoundMethod.php(37): Illuminate\\Container\\BoundMethod::callBoundMethod(Object(Illuminate\\Foundation\\Application), Array, Object(Closure))
#22 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Container/Container.php(653): Illuminate\\Container\\BoundMethod::call(Object(Illuminate\\Foundation\\Application), Array, Array, NULL)
#23 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Console/Command.php(136): Illuminate\\Container\\Container->call(Array)
#24 /var/www/html/masscer/vendor/symfony/console/Command/Command.php(298): Illuminate\\Console\\Command->execute(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Illuminate\\Console\\OutputStyle))
#25 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Console/Command.php(121): Symfony\\Component\\Console\\Command\\Command->run(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Illuminate\\Console\\OutputStyle))
#26 /var/www/html/masscer/vendor/spatie/laravel-backup/src/Commands/BaseCommand.php(16): Illuminate\\Console\\Command->run(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))
#27 /var/www/html/masscer/vendor/symfony/console/Application.php(1028): Spatie\\Backup\\Commands\\BaseCommand->run(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))
#28 /var/www/html/masscer/vendor/symfony/console/Application.php(299): Symfony\\Component\\Console\\Application->doRunCommand(Object(Spatie\\Backup\\Commands\\BackupCommand), Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))
#29 /var/www/html/masscer/vendor/symfony/console/Application.php(171): Symfony\\Component\\Console\\Application->doRun(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))
#30 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Console/Application.php(94): Symfony\\Component\\Console\\Application->run(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))
#31 /var/www/html/masscer/vendor/laravel/framework/src/Illuminate/Foundation/Console/Kernel.php(129): Illuminate\\Console\\Application->run(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))
#32 /var/www/html/masscer/artisan(37): Illuminate\\Foundation\\Console\\Kernel->handle(Object(Symfony\\Component\\Console\\Input\\ArgvInput), Object(Symfony\\Component\\Console\\Output\\ConsoleOutput))
#33 {main}
"}