Fatal error: Uncaught CredisException: Connection to Redis 127.0.0.1:6379 failed after 2 failures.Last Error : (1) Connection refused in /var/www/vhosts/rkssales.com.au/httpdocs/vendor/colinmollenhour/credis/Client.php:493 Stack trace: #0 /var/www/vhosts/rkssales.com.au/httpdocs/vendor/colinmollenhour/credis/Client.php(489): Credis_Client->connect() #1 /var/www/vhosts/rkssales.com.au/httpdocs/vendor/colinmollenhour/credis/Client.php(811): Credis_Client->connect() #2 /var/www/vhosts/rkssales.com.au/httpdocs/vendor/colinmollenhour/credis/Client.php(655): Credis_Client->__call() #3 /var/www/vhosts/rkssales.com.au/httpdocs/vendor/colinmollenhour/cache-backend-redis/Cm/Cache/Backend/Redis.php(415): Credis_Client->select() #4 /var/www/vhosts/rkssales.com.au/httpdocs/vendor/colinmollenhour/cache-backend-redis/Cm/Cache/Backend/Redis.php(250): Cm_Cache_Backend_Redis->_applyClientOptions() #5 /var/www/vhosts/rkssales.com.au/httpdocs/vendor/magento/framework/Cache/Backend/Redis.php(34): Cm_Cache_Backend_Redis->__construct() #6 /var/ in /var/www/vhosts/rkssales.com.au/httpdocs/vendor/colinmollenhour/credis/Client.php on line 493