Fatal error: Uncaught CredisException: Lost connection to Redis server. in /data/magento2/vendor/colinmollenhour/credis/Client.php:1285 Stack trace: #0 /data/magento2/vendor/colinmollenhour/credis/Client.php(1034): Credis_Client->read_reply('select') #1 /data/magento2/vendor/colinmollenhour/credis/Client.php(655): Credis_Client->__call('select', Array) #2 /data/magento2/vendor/colinmollenhour/cache-backend-redis/Cm/Cache/Backend/Redis.php(415): Credis_Client->select(1) #3 /data/magento2/vendor/colinmollenhour/cache-backend-redis/Cm/Cache/Backend/Redis.php(250): Cm_Cache_Backend_Redis->_applyClientOptions(Object(Credis_Client)) #4 /data/magento2/vendor/magento/zendframework1/library/Zend/Cache.php(153): Cm_Cache_Backend_Redis->__construct(Array) #5 /data/magento2/vendor/magento/zendframework1/library/Zend/Cache.php(94): Zend_Cache::_makeBackend('Cm_Cache_Backen...', Array, true, true) #6 /data/magento2/vendor/magento/framework/App/Cache/Frontend/Factory.php(156): Zend_Cache::factory('Magento\\Framewo...', 'Cm_Cache_Backen. in /data/magento2/vendor/colinmollenhour/credis/Client.php on line 1285