SQLSTATE[08004] [1040] Too many connections

Typecho_Db_Adapter_Exception: SQLSTATE[08004] [1040] Too many connections in /www/wwwroot/fkan/var/Typecho/Db/Adapter/Pdo.php:60 Stack trace: #0 /www/wwwroot/fkan/var/Typecho/Db.php(199): Typecho_Db_Adapter_Pdo->connect() #1 /www/wwwroot/fkan/var/Typecho/Db.php(350): Typecho_Db->selectDb() #2 /www/wwwroot/fkan/usr/plugins/Textends/Contents.php(206): Typecho_Db->query() #3 /www/wwwroot/fkan/var/Typecho/Plugin.php(489): Textends_Contents::viewCounter() #4 /www/wwwroot/fkan/var/Widget/Archive.php(882): Typecho_Plugin->__call() #5 /www/wwwroot/fkan/var/Widget/Archive.php(1383): Widget_Archive->singleHandle() #6 /www/wwwroot/fkan/var/Typecho/Widget.php(221): Widget_Archive->execute() #7 /www/wwwroot/fkan/var/Typecho/Router.php(141): Typecho_Widget::widget() #8 /www/wwwroot/fkan/index.php(26): Typecho_Router::dispatch() #9 {main}