Fatal error: Uncaught PDOException: SQLSTATE[HY000] [1040] Too many connections in /usr/local/ZendFramework/library/Zend/Db/Adapter/Pdo/Abstract.php:128
Stack trace:
#0 /usr/local/ZendFramework/library/Zend/Db/Adapter/Pdo/Abstract.php(128): PDO->__construct('mysql:host=loca...', 'ns_shinjo', 'tvPnp@67wX', Array)
#1 /usr/local/ZendFramework/library/Zend/Db/Adapter/Pdo/Mysql.php(109): Zend_Db_Adapter_Pdo_Abstract->_connect()
#2 /usr/local/ZendFramework/library/Zend/Db/Adapter/Abstract.php(459): Zend_Db_Adapter_Pdo_Mysql->_connect()
#3 /usr/local/ZendFramework/library/Zend/Db/Adapter/Pdo/Abstract.php(238): Zend_Db_Adapter_Abstract->query('SELECT `pref`.`...', Array)
#4 /usr/local/ZendFramework/library/Zend/Db/Adapter/Abstract.php(736): Zend_Db_Adapter_Pdo_Abstract->query('SELECT `pref`.`...', Array)
#5 /var/www/shinjo-nurse/application/function.php(6948): Zend_Db_Adapter_Abstract->fetchAll('SELECT `pref`.`...')
#6 /var/www/shinjo-nurse/html/inquiry/index.php(41): getPrefAll()
#7 {main}

Next Zend_Db_Adapter_Exception: SQLSTA in /usr/local/ZendFramework/library/Zend/Db/Adapter/Pdo/Abstract.php on line 144