Unable to connect to Redis

#0 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/code/community/Cm/RedisSession/Model/Session.php(63): Cm\RedisSession\Handler->__construct(Object(Cm_RedisSession_Model_Session_Config), Object(Cm_RedisSession_Model_Session_Logger), false)
#1 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/code/core/Mage/Core/Model/Config.php(1354): Cm_RedisSession_Model_Session->__construct(Array)
#2 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/code/core/Mage/Core/Model/Config.php(1386): Mage_Core_Model_Config->getModelInstance('core_resource/s...', Array)
#3 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/Mage.php(500): Mage_Core_Model_Config->getResourceModelInstance('core/session', Array)
#4 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/Mage.php(528): Mage::getResourceModel('core/session', Array)
#5 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/code/local/Decathlon/Turpentine/Model/Core/Session.php(40): Mage::getResourceSingleton('core/session')
#6 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/code/core/Mage/Core/Model/Session/Abstract/Varien.php(228): Decathlon_Turpentine_Model_Core_Session->start('frontend')
#7 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/code/core/Mage/Core/Model/Session/Abstract.php(84): Mage_Core_Model_Session_Abstract_Varien->init('core', 'frontend')
#8 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/code/community/Nexcessnet/Turpentine/Model/Core/Session.php(26): Mage_Core_Model_Session_Abstract->init('core', 'frontend')
#9 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/code/core/Mage/Core/Model/Config.php(1354): Nexcessnet_Turpentine_Model_Core_Session->__construct(Array)
#10 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/Mage.php(472): Mage_Core_Model_Config->getModelInstance('core/session', Array)
#11 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/Mage.php(486): Mage::getModel('core/session', Array)
#12 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/code/core/Mage/Core/Controller/Varien/Action.php(493): Mage::getSingleton('core/session', Array)
#13 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/code/core/Mage/Core/Controller/Front/Action.php(69): Mage_Core_Controller_Varien_Action->preDispatch()
#14 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/code/core/Mage/Core/Controller/Varien/Action.php(407): Mage_Core_Controller_Front_Action->preDispatch()
#15 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/code/core/Mage/Core/Controller/Varien/Router/Standard.php(254): Mage_Core_Controller_Varien_Action->dispatch('view')
#16 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/code/core/Mage/Core/Controller/Varien/Front.php(172): Mage_Core_Controller_Varien_Router_Standard->match(Object(Mage_Core_Controller_Request_Http))
#17 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/code/core/Mage/Core/Model/App.php(354): Mage_Core_Controller_Varien_Front->dispatch()
#18 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/app/Mage.php(692): Mage_Core_Model_App->run(Array)
#19 /home/www-decathlonv2/www/decathloneurlt/www_20190321-093015/src/index.php(130): Mage::run('lt_lt', 'store')
#20 {main}