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<b>Fatal error</b>:  Uncaught CredisException: Connection to Redis 10.16.15.178:6379 failed after 2 failures.Last Error : (1) Connection refused in /var/www/vendor/colinmollenhour/credis/Client.php:493
Stack trace:
#0 /var/www/vendor/colinmollenhour/credis/Client.php(489): Credis_Client-&gt;connect()
#1 /var/www/vendor/colinmollenhour/credis/Client.php(811): Credis_Client-&gt;connect()
#2 /var/www/vendor/colinmollenhour/cache-backend-redis/Cm/Cache/Backend/Redis.php(472): Credis_Client-&gt;__call('hGet', Array)
#3 /var/www/vendor/magento/zendframework1/library/Zend/Cache/Core.php(306): Cm_Cache_Backend_Redis-&gt;load('e69_MAGE_VERSIO...', false)
#4 /var/www/vendor/magento/framework/Cache/Frontend/Adapter/Zend.php(55): Zend_Cache_Core-&gt;load('e69_MAGE_VERSIO...')
#5 /var/www/vendor/magento/framework/Cache/Frontend/Decorator/Bare.php(65): Magento\Framework\Cache\Frontend\Adapter\Zend-&gt;load('mage-version')
#6 /var/www/vendor/magento/framework/Cache/Frontend/Decorator/Bare.php(65): Magento\Framework\Cache\Frontend\Decorator\Bare-&gt;load('mage-versi in <b>/var/www/vendor/colinmollenhour/credis/Client.php</b> on line <b>493</b><br />