SQLSTATE[HY000] [1203] User 11mecg already has more than 'max_user_connections' active connections

FILE: D:\virtualhost\localuser\host6673613466\www\ThinkPHP\Library\Think\Db\Driver\Pdo.class.php 　LINE: 51

#0 D:\virtualhost\localuser\host6673613466\www\ThinkPHP\Library\Think\Db\Driver\Pdo.class.php(51): E('SQLSTATE[HY000]...')
#1 D:\virtualhost\localuser\host6673613466\www\ThinkPHP\Library\Think\Db.class.php(159): Think\Db\Driver\Pdo->connect()
#2 D:\virtualhost\localuser\host6673613466\www\ThinkPHP\Library\Think\Db\Driver\Pdo.class.php(227): Think\Db->initConnect(true)
#3 D:\virtualhost\localuser\host6673613466\www\ThinkPHP\Library\Think\Model.class.php(125): Think\Db\Driver\Pdo->getFields('qt_article')
#4 D:\virtualhost\localuser\host6673613466\www\ThinkPHP\Library\Think\Model.class.php(114): Think\Model->flush()
#5 D:\virtualhost\localuser\host6673613466\www\ThinkPHP\Library\Think\Model.class.php(1241): Think\Model->_checkTableInfo()
#6 D:\virtualhost\localuser\host6673613466\www\ThinkPHP\Library\Think\Model.class.php(92): Think\Model->db(0, 'DB_CONFIG3', true)
#7 D:\virtualhost\localuser\host6673613466\www\ThinkPHP\Common\functions.php(527): Think\Model->__construct('Article', 'qt_', 'DB_CONFIG3')
#8 D:\virtualhost\localuser\host6673613466\www\App\Home\Controller\ArticleController.class.php(45): M('Article', 'qt_', 'DB_CONFIG3')
#9 [internal function]: Home\Controller\ArticleController->index()
#10 D:\virtualhost\localuser\host6673613466\www\ThinkPHP\Library\Think\App.class.php(154): ReflectionMethod->invoke(Object(Home\Controller\ArticleController))
#11 D:\virtualhost\localuser\host6673613466\www\ThinkPHP\Library\Think\App.class.php(191): Think\App::exec()
#12 D:\virtualhost\localuser\host6673613466\www\ThinkPHP\Library\Think\Think.class.php(102): Think\App::run()
#13 D:\virtualhost\localuser\host6673613466\www\ThinkPHP\ThinkPHP.php(85): Think\Think::start()
#14 D:\virtualhost\localuser\host6673613466\www\index.php(24): require('D:\\virtualhost\\...')
#15 {main}