Fatal error: Uncaught Error: Undefined class constant 'MailPoet\Cron\Workers\SendingQueue\SendingQueue::EMAIL_WITH_INVALID_SEGMENT_OPTION' in /var/www/web23582835/html/Zeppi-Net/wp-content/plugins/mailpoet/lib/Util/Notices/PermanentNotices.php:54 Stack trace: #0 /var/www/web23582835/html/Zeppi-Net/wp-content/plugins/mailpoet/generated/FreeCachedContainer.php(944): MailPoet\Util\Notices\PermanentNotices->__construct(Object(MailPoet\WP\Functions)) #1 /var/www/web23582835/html/Zeppi-Net/wp-content/plugins/mailpoet/vendor-prefixed/symfony/dependency-injection/Container.php(2): MailPoetGenerated\FreeCachedContainer->getInitializerService() #2 /var/www/web23582835/html/Zeppi-Net/wp-content/plugins/mailpoet/vendor-prefixed/symfony/dependency-injection/Container.php(2): MailPoetVendor\Symfony\Component\DependencyInjection\Container->make('MailPoet\\Config...', 1) #3 /var/www/web23582835/html/Zeppi-Net/wp-content/plugins/mailpoet/lib/DI/ContainerWrapper.php(30): MailPoetVendor\Symfony\Component\DependencyInjection\Container->get(' in /var/www/web23582835/html/Zeppi-Net/wp-content/plugins/mailpoet/lib/Util/Notices/PermanentNotices.php on line 54