Fatal error when using latest Mailpoet

It seemed pretty all of the sudden but I went to my site and MailPoet was throwing an error–I couldn’t access WP Admin or the main site. I deleted the plugin and then tried to reinstall and reactivate it but it keeps giving me the same error, see below:

I’m running PHP 7.2.1 and have the latest WordPress.

Fatal error: Uncaught Error: Call to undefined method Swift_DependencyContainer::asValue() in /srv/users/serverpilot/apps/besttechie/public/wp-content/plugins/mailpoet/vendor/swiftmailer/swiftmailer/lib/dependency_maps/cache_deps.php:8 Stack trace: #0 /srv/users/serverpilot/apps/besttechie/public/wp-content/plugins/mailpoet/vendor/swiftmailer/swiftmailer/lib/swift_init.php(22): require() #1 /srv/users/serverpilot/apps/besttechie/public/wp-content/plugins/mailpoet/vendor/swiftmailer/swiftmailer/lib/swift_required.php(25): require(‘/srv/users/serv…’) #2 /srv/users/serverpilot/apps/besttechie/public/wp-content/plugins/mailpoet/vendor/swiftmailer/swiftmailer/lib/classes/Swift.php(61): _swiftmailer_init() #3 [internal function]: Swift::autoload(‘Swift_Mailer’) #4 [internal function]: spl_autoload_call(‘Swift_Mailer’) #5 /srv/users/serverpilot/apps/besttechie/public/wp-content/plugins/mailpoet/lib/Config/RequirementsChecker.php(170): ReflectionClass->__construct(‘\\Swift_Mailer’) #6 /srv/users/serverpilot/apps/besttechie/publ in /srv/users/serverpilot/apps/besttechie/public/wp-content/plugins/mailpoet/vendor/swiftmailer/swiftmailer/lib/dependency_maps/cache_deps.php on line 8