Fatal error: Uncaught TypeError: Dou\Core\Foundation\Event\Event::listen(): Argument #2 ($listener) must be of type callable, array given, called in /www/wwwroot/www.honsberg.net.cn/core/foundation/event/MailNotificationRegistrar.php on line 50 and defined in /www/wwwroot/www.honsberg.net.cn/core/foundation/event/Event.php:44 Stack trace: #0 /www/wwwroot/www.honsberg.net.cn/core/foundation/event/MailNotificationRegistrar.php(50): Dou\Core\Foundation\Event\Event::listen() #1 /www/wwwroot/www.honsberg.net.cn/core/bootstrap.php(176): Dou\Core\Foundation\Event\MailNotificationRegistrar::register() #2 /www/wwwroot/www.honsberg.net.cn/index.php(16): require('...') #3 {main} thrown in /www/wwwroot/www.honsberg.net.cn/core/foundation/event/Event.php on line 44