Additional uncaught exception thrown while handling exception.

Original

Predis\Connection\ConnectionException: Connection refused [tcp://172.31.21.33:6379] in Predis\Connection\AbstractConnection->onConnectionError() (line 155 of /home/seasus.com/htdocs/sites/all/libraries/predis/src/Connection/AbstractConnection.php).

Additional

Predis\Connection\ConnectionException: Connection refused [tcp://172.31.21.33:6379] in Predis\Connection\AbstractConnection->onConnectionError() (line 155 of /home/seasus.com/htdocs/sites/all/libraries/predis/src/Connection/AbstractConnection.php).