Connection to Redis failed after 2 failures.Last Error : (111) Connection refused

#0 /var/www/galeriapix.com.br/lib/Credis/Client.php(439): Credis_Client->connect()
#1 /var/www/galeriapix.com.br/lib/Credis/Client.php(1017): Credis_Client->connect()
#2 /var/www/galeriapix.com.br/lib/Credis/Client.php(824): Credis_Client->write_command('*3\r\n$4\r\nhget\r\n$...')
#3 /var/www/galeriapix.com.br/lib/Cm/Cache/Backend/Redis.php(198): Credis_Client->__call('hGet', Array)
#4 /var/www/galeriapix.com.br/lib/Cm/Cache/Backend/Redis.php(198): Credis_Client->hGet('zc:k:4c4_DB_PDO...', 'd')
#5 /var/www/galeriapix.com.br/lib/Zend/Cache/Core.php(306): Cm_Cache_Backend_Redis->load('4c4_DB_PDO_MYSQ...', false)
#6 /var/www/galeriapix.com.br/lib/Varien/Cache/Core.php(158): Zend_Cache_Core->load('DB_PDO_MYSQL_DD...', false, false)
#7 /var/www/galeriapix.com.br/lib/Varien/Db/Adapter/Pdo/Mysql.php(1548): Varien_Cache_Core->load('DB_PDO_MYSQL_DD...')
#8 /var/www/galeriapix.com.br/lib/Varien/Db/Adapter/Pdo/Mysql.php(1687): Varien_Db_Adapter_Pdo_Mysql->loadDdlCache('log_visitor_inf...', 1)
#9 /var/www/galeriapix.com.br/app/code/core/Mage/Core/Model/Resource/Abstract.php(212): Varien_Db_Adapter_Pdo_Mysql->describeTable('log_visitor_inf...')
#10 /var/www/galeriapix.com.br/app/code/core/Mage/Log/Model/Resource/Visitor.php(201): Mage_Core_Model_Resource_Abstract->_prepareDataForTable(Object(Varien_Object), 'log_visitor_inf...')
#11 /var/www/galeriapix.com.br/app/code/core/Mage/Log/Model/Resource/Visitor.php(129): Mage_Log_Model_Resource_Visitor->_saveVisitorInfo(Object(Mage_Log_Model_Visitor))
#12 /var/www/galeriapix.com.br/app/code/core/Mage/Core/Model/Resource/Db/Abstract.php(463): Mage_Log_Model_Resource_Visitor->_afterSave(Object(Mage_Log_Model_Visitor))
#13 /var/www/galeriapix.com.br/app/code/core/Mage/Core/Model/Abstract.php(318): Mage_Core_Model_Resource_Db_Abstract->save(Object(Mage_Log_Model_Visitor))
#14 /var/www/galeriapix.com.br/app/code/core/Mage/Log/Model/Visitor.php(198): Mage_Core_Model_Abstract->save()
#15 /var/www/galeriapix.com.br/app/code/core/Mage/Core/Model/App.php(1358): Mage_Log_Model_Visitor->initByRequest(Object(Varien_Event_Observer))
#16 /var/www/galeriapix.com.br/app/code/core/Mage/Core/Model/App.php(1337): Mage_Core_Model_App->_callObserverMethod(Object(Mage_Log_Model_Visitor), 'initByRequest', Object(Varien_Event_Observer))
#17 /var/www/galeriapix.com.br/app/Mage.php(448): Mage_Core_Model_App->dispatchEvent('controller_acti...', Array)
#18 /var/www/galeriapix.com.br/app/code/core/Mage/Core/Controller/Varien/Action.php(527): Mage::dispatchEvent('controller_acti...', Array)
#19 /var/www/galeriapix.com.br/app/code/core/Mage/Core/Controller/Front/Action.php(69): Mage_Core_Controller_Varien_Action->preDispatch()
#20 /var/www/galeriapix.com.br/app/code/core/Mage/Core/Controller/Varien/Action.php(407): Mage_Core_Controller_Front_Action->preDispatch()
#21 /var/www/galeriapix.com.br/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('view')
#22 /var/www/galeriapix.com.br/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#23 /var/www/galeriapix.com.br/app/code/core/Mage/Core/Model/App.php(365): Mage_Core_Controller_Varien_Front->dispatch()
#24 /var/www/galeriapix.com.br/app/Mage.php(684): Mage_Core_Model_App->run(Array)
#25 /var/www/galeriapix.com.br/index.php(68): Mage::run('', 'store')
#26 {main}