Fatal error: Uncaught Exception: 数据库连接失败: SQLSTATE[08004] [1040] Too many connections in /var/www/video-site/core/Database.php:70 Stack trace: #0 /var/www/video-site/core/Database.php(19): VideoSite\Core\Database->connect() #1 /var/www/video-site/core/Database.php(30): VideoSite\Core\Database->__construct() #2 /var/www/video-site/Controllers/BaseController.php(23): VideoSite\Core\Database::getInstance() #3 /var/www/video-site/core/Router.php(811): VideoSite\Controllers\BaseController->__construct() #4 /var/www/video-site/core/Router.php(786): VideoSite\Core\Router->executeController() #5 /var/www/video-site/core/Router.php(711): VideoSite\Core\Router->executeHandler() #6 /var/www/video-site/public/index.php(73): VideoSite\Core\Router->dispatch() #7 {main} thrown in /var/www/video-site/core/Database.php on line 70