I just migrated a server from Plesk to ispconfig 3.1. I pointed the dns at the newserverandgotthe follwoing erro when pointing the browser at my webmail. A fatal error has occurred Could not instantiate PDO with DSN "mysqlrotocol=unix;unix_socket=/var/lib/mysql/mysql.sock;dbname=horde". PDOException: SQLSTATE[HY000]  Too many connections Details have been logged for the administrator. I checked for the number of connections onthe server andthere were 450. How? It had 450 connections afterI pointed the dns back atthe old server. Basically any of the sites that have a database are unreachable. Can anyone help?