JumpButton North Framework Exception

SQLSTATE[HY000] [2002] Connection refused in /mnt/vdb/websites/jtgsystems.com/core/models/datasources/mysql_pdo.class.php:(39)#0 /mnt/vdb/websites/jtgsystems.com/core/models/datasource.class.php(85): MySQL_PDO->connect()#1 /mnt/vdb/websites/jtgsystems.com/core/models/datasources/mysql_pdo.class.php(19): Datasource->__construct()#2 /mnt/vdb/websites/jtgsystems.com/core/classes/database.class.php(101): MySQL_PDO->__construct(Array)#3 /mnt/vdb/websites/jtgsystems.com/core/base/bootstrap.php(110): Database::init()#4 /mnt/vdb/websites/jtgsystems.com/core/client_base/base.php(61): require_once('/mnt/vdb/websit...')#5 /mnt/vdb/websites/jtgsystems.com/client/webroot/index.php(26): require_once('/mnt/vdb/websit...')#6 {main}