read error on connection

#0 /var/www/deramores-1.13.0.2/app/code/community/Cm/Cache/Backend/Redis.php(198): Credis_Client->__call('hGet', Array)
#1 /var/www/deramores-1.13.0.2/app/code/community/Cm/Cache/Backend/Redis.php(198): Credis_Client->hGet('zc:k:ee5_FPC_DE...', 'd')
#2 /var/www/deramores-1.13.0.2/lib/Zend/Cache/Core.php(303): Cm_Cache_Backend_Redis->load('ee5_FPC_DESIGN_...', false)
#3 /var/www/deramores-1.13.0.2/lib/Varien/Cache/Core.php(158): Zend_Cache_Core->load('FPC_DESIGN_EXCE...', false, false)
#4 /var/www/deramores-1.13.0.2/app/code/core/Mage/Core/Model/Cache.php(379): Varien_Cache_Core->load('FPC_DESIGN_EXCE...')
#5 /var/www/deramores-1.13.0.2/app/code/core/Enterprise/PageCache/Model/Processor.php(185): Mage_Core_Model_Cache->load('FPC_DESIGN_EXCE...')
#6 /var/www/deramores-1.13.0.2/app/code/core/Enterprise/PageCache/Model/Processor.php(146): Enterprise_PageCache_Model_Processor->_getDesignPackage()
#7 /var/www/deramores-1.13.0.2/app/code/core/Enterprise/PageCache/Model/Processor.php(108): Enterprise_PageCache_Model_Processor->_createRequestIds()
#8 /var/www/deramores-1.13.0.2/app/code/core/Mage/Core/Model/Config.php(1348): Enterprise_PageCache_Model_Processor->__construct(Array)
#9 /var/www/deramores-1.13.0.2/app/Mage.php(462): Mage_Core_Model_Config->getModelInstance('enterprise_page...', Array)
#10 /var/www/deramores-1.13.0.2/app/Mage.php(476): Mage::getModel('enterprise_page...', Array)
#11 /var/www/deramores-1.13.0.2/app/code/core/Enterprise/PageCache/Model/Observer.php(69): Mage::getSingleton('enterprise_page...')
#12 /var/www/deramores-1.13.0.2/app/code/core/Mage/Core/Model/Config.php(1348): Enterprise_PageCache_Model_Observer->__construct(Array)
#13 /var/www/deramores-1.13.0.2/app/Mage.php(462): Mage_Core_Model_Config->getModelInstance('enterprise_page...', Array)
#14 /var/www/deramores-1.13.0.2/app/Mage.php(476): Mage::getModel('enterprise_page...', Array)
#15 /var/www/deramores-1.13.0.2/app/code/core/Mage/Core/Model/App.php(1316): Mage::getSingleton('enterprise_page...')
#16 /var/www/deramores-1.13.0.2/app/Mage.php(447): Mage_Core_Model_App->dispatchEvent('controller_acti...', Array)
#17 /var/www/deramores-1.13.0.2/app/code/core/Mage/Core/Controller/Varien/Action.php(527): Mage::dispatchEvent('controller_acti...', Array)
#18 /var/www/deramores-1.13.0.2/app/code/core/Mage/Core/Controller/Front/Action.php(64): Mage_Core_Controller_Varien_Action->preDispatch()
#19 /var/www/deramores-1.13.0.2/app/code/core/Mage/Core/Controller/Varien/Action.php(407): Mage_Core_Controller_Front_Action->preDispatch()
#20 /var/www/deramores-1.13.0.2/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(250): Mage_Core_Controller_Varien_Action->dispatch('view')
#21 /var/www/deramores-1.13.0.2/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#22 /var/www/deramores-1.13.0.2/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#23 /var/www/deramores-1.13.0.2/app/Mage.php(683): Mage_Core_Model_App->run(Array)
#24 /var/www/deramores-1.13.0.2/index.php(93): Mage::run('deramores_gb_en', 'store')
#25 {main}