Fatal error: Uncaught CredisException: Connection to Redis 192.168.1.4:8502 failed after 2 failures.Last Error : (111) Connection refused in /var/www/html/vendor/colinmollenhour/credis/Client.php:475 Stack trace: #0 /var/www/html/vendor/colinmollenhour/credis/Client.php(471): Credis_Client->connect() #1 /var/www/html/vendor/colinmollenhour/credis/Client.php(784): Credis_Client->connect() #2 /var/www/html/vendor/colinmollenhour/credis/Client.php(626): Credis_Client->__call('auth', Array) #3 /var/www/html/vendor/colinmollenhour/cache-backend-redis/Cm/Cache/Backend/Redis.php(388): Credis_Client->auth('redis!!mx') #4 /var/www/html/vendor/colinmollenhour/cache-backend-redis/Cm/Cache/Backend/Redis.php(250): Cm_Cache_Backend_Redis->_applyClientOptions(Object(Credis_Client)) #5 /var/www/html/vendor/magento/zendframework1/library/Zend/Cache.php(153): Cm_Cache_Backend_Redis->__construct(Array) #6 /var/www/html/vendor/magento/zendframework1/library/Zend/Cache.php(94): Zend_Cache::_makeBackend('Cm_Cache_Backen...', Array, true, true) in /var/www/html/vendor/colinmollenhour/credis/Client.php on line 475