Fatal error: Uncaught exception 'PDOException' with message 'SQLSTATE[HY000] [1040] Too many connections' in /var/www/zyy/wwwroot/modules/Common/Conn.php:39 Stack trace: #0 /var/www/zyy/wwwroot/modules/Common/Conn.php(39): PDO->__construct('mysql:host=127....', 'zyy', 'zyy2017') #1 /var/www/zyy/wwwroot/modules/ArticleLabel/plugins/function.articleLabelList.php(94): Conn::getReadConn() #2 /var/www/zyy/wwwroot/ccache/co/booen/zyy/compile/c2fb9c15^%%74^74D^74DC9723%%article.List.article.tpl.html.php(5): smarty_function_articleLabelList(Array, Object(Tpl)) #3 /var/www/zyy/wwwroot/modules/Smarty/Smarty/Smarty.class.php(1867): include('/var/www/zyy/ww...') #4 /var/www/zyy/wwwroot/ccache/co/booen/zyy/compile/c2fb9c15^%%C2^C2F^C2FB9C15%%article.List.tpl.html.php(89): Smarty->_smarty_include(Array) #5 /var/www/zyy/wwwroot/modules/Smarty/Smarty/Smarty.class.php(1263): include('/var/www/zyy/ww...') #6 /var/www/zyy/wwwroot/modules/Smarty/Tpl.php(181): Smarty->fetch('/var/www/zyy/ww...', 'a9cbdf299dec676...', 'c2fb9c15', false) #7 /va in /var/www/zyy/wwwroot/modules/Common/Conn.php on line 39