Fatal error: Uncaught CredisException: Connection to Redis 127.0.0.1:6379 failed after 2 failures.Last Error : (111) Connection refused in /opt/magento/public_html/vendor/colinmollenhour/credis/Client.php:475 Stack trace: #0 /opt/magento/public_html/vendor/colinmollenhour/credis/Client.php(471): Credis_Client->connect() #1 /opt/magento/public_html/vendor/colinmollenhour/credis/Client.php(784): Credis_Client->connect() #2 /opt/magento/public_html/vendor/colinmollenhour/cache-backend-redis/Cm/Cache/Backend/Redis.php(461): Credis_Client->__call('hGet', Array) #3 /opt/magento/public_html/vendor/magento/zendframework1/library/Zend/Cache/Core.php(306): Cm_Cache_Backend_Redis->load('aa4_GLOBAL__DIC...', false) #4 /opt/magento/public_html/vendor/magento/framework/Cache/Frontend/Adapter/Zend.php(55): Zend_Cache_Core->load('aa4_GLOBAL__DIC...') #5 /opt/magento/public_html/vendor/magento/framework/Cache/Frontend/Decorator/Bare.php(65): Magento\Framework\Cache\Frontend\Adapter\Zend->load('global::DiConfi...') #6 /opt/magento/public_h in /opt/magento/public_html/vendor/colinmollenhour/credis/Client.php on line 475