Unable to connect to Redis

#0 /domains/startfitness.co.uk/http/app/code/local/Cm/RedisSession/Model/Session.php(64): Cm\RedisSession\Handler->__construct(Object(Cm_RedisSession_Model_Session_Config), Object(Cm_RedisSession_Model_Session_Logger), false)
#1 /domains/startfitness.co.uk/http/app/code/core/Mage/Core/Model/Config.php(1354): Cm_RedisSession_Model_Session->__construct(Array)
#2 /domains/startfitness.co.uk/http/app/code/core/Mage/Core/Model/Config.php(1386): Mage_Core_Model_Config->getModelInstance('core_resource/s...', Array)
#3 /domains/startfitness.co.uk/http/app/Mage.php(490): Mage_Core_Model_Config->getResourceModelInstance('core/session', Array)
#4 /domains/startfitness.co.uk/http/app/Mage.php(518): Mage::getResourceModel('core/session', Array)
#5 /domains/startfitness.co.uk/http/app/code/core/Mage/Core/Model/Session/Abstract/Varien.php(59): Mage::getResourceSingleton('core/session')
#6 /domains/startfitness.co.uk/http/app/code/core/Mage/Core/Model/Session/Abstract/Varien.php(170): Mage_Core_Model_Session_Abstract_Varien->start('frontend')
#7 /domains/startfitness.co.uk/http/app/code/core/Mage/Core/Model/Session/Abstract.php(84): Mage_Core_Model_Session_Abstract_Varien->init('core', 'frontend')
#8 /domains/startfitness.co.uk/http/app/code/core/Mage/Core/Model/Session.php(42): Mage_Core_Model_Session_Abstract->init('core', 'frontend')
#9 /domains/startfitness.co.uk/http/app/code/core/Mage/Core/Model/Config.php(1354): Mage_Core_Model_Session->__construct(Array)
#10 /domains/startfitness.co.uk/http/app/Mage.php(462): Mage_Core_Model_Config->getModelInstance('core/session', Array)
#11 /domains/startfitness.co.uk/http/app/Mage.php(476): Mage::getModel('core/session', Array)
#12 /domains/startfitness.co.uk/http/app/code/core/Mage/Core/Controller/Varien/Action.php(493): Mage::getSingleton('core/session', Array)
#13 /domains/startfitness.co.uk/http/app/code/core/Mage/Core/Controller/Front/Action.php(69): Mage_Core_Controller_Varien_Action->preDispatch()
#14 /domains/startfitness.co.uk/http/app/code/core/Mage/Core/Controller/Varien/Action.php(407): Mage_Core_Controller_Front_Action->preDispatch()
#15 /domains/startfitness.co.uk/http/var/cache/ew/files/69/b9/Mage/Core/Controller/Varien/Router/Standard.php(273): Mage_Core_Controller_Varien_Action->dispatch('view')
#16 /domains/startfitness.co.uk/http/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_StandardOverriddenClass->match(Object(Mage_Core_Controller_Request_Http))
#17 /domains/startfitness.co.uk/http/app/code/core/Mage/Core/Model/App.php(370): Mage_Core_Controller_Varien_Front->dispatch()
#18 /domains/startfitness.co.uk/http/app/Mage.php(683): Mage_Core_Model_App->run(Array)
#19 /domains/startfitness.co.uk/http/index.php(110): Mage::run('fitness_en', 'store')
#20 {main}